Home / 90,221.06-124,496.63-53,915.30

Finding the Fourth Proportional to 90,221.06, 124,496.63 and 53,915.30

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Solution

The fourth proportional to 90,221.06, 124,496.63 and 53,915.30 is: 74,398.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,221.06 : 124,496.63 = 53,915.30 : x
  2. Step 2: Convert to fraction form
    90,221.06/124,496.63 = 53,915.30/x
  3. Step 3: Cross multiply
    90,221.06x = 124,496.63 × 53,915.30
  4. Step 4: Simplify right side
    90,221.06x = 6,712,272,263.38
  5. Step 5: Solve for x
    x = 6,712,272,263.38/90,221.06
  6. Step 6: Final answer
    x = 74,398.07

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1.5x scale

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.