Home / 90,306.09-124,683.30-56,366.28

Finding the Fourth Proportional to 90,306.09, 124,683.30 and 56,366.28

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Solution

The fourth proportional to 90,306.09, 124,683.30 and 56,366.28 is: 77,823.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,306.09 : 124,683.30 = 56,366.28 : x
  2. Step 2: Convert to fraction form
    90,306.09/124,683.30 = 56,366.28/x
  3. Step 3: Cross multiply
    90,306.09x = 124,683.30 × 56,366.28
  4. Step 4: Simplify right side
    90,306.09x = 7,027,933,799.12
  5. Step 5: Solve for x
    x = 7,027,933,799.12/90,306.09
  6. Step 6: Final answer
    x = 77,823.48

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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.