Home / 99,544.45-137,368.95-57,100.18

Finding the Fourth Proportional to 99,544.45, 137,368.95 and 57,100.18

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Solution

The fourth proportional to 99,544.45, 137,368.95 and 57,100.18 is: 78,796.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,544.45 : 137,368.95 = 57,100.18 : x
  2. Step 2: Convert to fraction form
    99,544.45/137,368.95 = 57,100.18/x
  3. Step 3: Cross multiply
    99,544.45x = 137,368.95 × 57,100.18
  4. Step 4: Simplify right side
    99,544.45x = 7,843,791,771.41
  5. Step 5: Solve for x
    x = 7,843,791,771.41/99,544.45
  6. Step 6: Final answer
    x = 78,796.88

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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.