Home / 90,538.50-124,943.13-50,258.77

Finding the Fourth Proportional to 90,538.50, 124,943.13 and 50,258.77

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Solution

The fourth proportional to 90,538.50, 124,943.13 and 50,258.77 is: 69,357.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,538.50 : 124,943.13 = 50,258.77 : x
  2. Step 2: Convert to fraction form
    90,538.50/124,943.13 = 50,258.77/x
  3. Step 3: Cross multiply
    90,538.50x = 124,943.13 × 50,258.77
  4. Step 4: Simplify right side
    90,538.50x = 6,279,487,721.39
  5. Step 5: Solve for x
    x = 6,279,487,721.39/90,538.50
  6. Step 6: Final answer
    x = 69,357.10

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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.