Home / 85,291.16-127,688.94-49,643.66

Finding the Fourth Proportional to 85,291.16, 127,688.94 and 49,643.66

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Solution

The fourth proportional to 85,291.16, 127,688.94 and 49,643.66 is: 74,321.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,291.16 : 127,688.94 = 49,643.66 : x
  2. Step 2: Convert to fraction form
    85,291.16/127,688.94 = 49,643.66/x
  3. Step 3: Cross multiply
    85,291.16x = 127,688.94 × 49,643.66
  4. Step 4: Simplify right side
    85,291.16x = 6,338,946,642.34
  5. Step 5: Solve for x
    x = 6,338,946,642.34/85,291.16
  6. Step 6: Final answer
    x = 74,321.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.