Home / 91,543,172.80-126,328,970.64-49,726,858

Finding the Fourth Proportional to 91,543,172.80, 126,328,970.64 and 49,726,858

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Solution

The fourth proportional to 91,543,172.80, 126,328,970.64 and 49,726,858 is: 68,622,733.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,543,172.80 : 126,328,970.64 = 49,726,858 : x
  2. Step 2: Convert to fraction form
    91,543,172.80/126,328,970.64 = 49,726,858/x
  3. Step 3: Cross multiply
    91,543,172.80x = 126,328,970.64 × 49,726,858
  4. Step 4: Simplify right side
    91,543,172.80x = 6,281,942,784,301,449
  5. Step 5: Solve for x
    x = 6,281,942,784,301,449/91,543,172.80
  6. Step 6: Final answer
    x = 68,622,733.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.