Home / 77,854.30-107,438.93-42,044.31

Finding the Fourth Proportional to 77,854.30, 107,438.93 and 42,044.31

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Solution

The fourth proportional to 77,854.30, 107,438.93 and 42,044.31 is: 58,021.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,854.30 : 107,438.93 = 42,044.31 : x
  2. Step 2: Convert to fraction form
    77,854.30/107,438.93 = 42,044.31/x
  3. Step 3: Cross multiply
    77,854.30x = 107,438.93 × 42,044.31
  4. Step 4: Simplify right side
    77,854.30x = 4,517,195,468.77
  5. Step 5: Solve for x
    x = 4,517,195,468.77/77,854.30
  6. Step 6: Final answer
    x = 58,021.14

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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.