Home / 77,528.05-107,005.38-47,306.90

Finding the Fourth Proportional to 77,528.05, 107,005.38 and 47,306.90

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Solution

The fourth proportional to 77,528.05, 107,005.38 and 47,306.90 is: 65,293.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,528.05 : 107,005.38 = 47,306.90 : x
  2. Step 2: Convert to fraction form
    77,528.05/107,005.38 = 47,306.90/x
  3. Step 3: Cross multiply
    77,528.05x = 107,005.38 × 47,306.90
  4. Step 4: Simplify right side
    77,528.05x = 5,062,092,276.10
  5. Step 5: Solve for x
    x = 5,062,092,276.10/77,528.05
  6. Step 6: Final answer
    x = 65,293.69

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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.