Home / 77,124.32-115,657.28-42,044.88

Finding the Fourth Proportional to 77,124.32, 115,657.28 and 42,044.88

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Solution

The fourth proportional to 77,124.32, 115,657.28 and 42,044.88 is: 63,051.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,124.32 : 115,657.28 = 42,044.88 : x
  2. Step 2: Convert to fraction form
    77,124.32/115,657.28 = 42,044.88/x
  3. Step 3: Cross multiply
    77,124.32x = 115,657.28 × 42,044.88
  4. Step 4: Simplify right side
    77,124.32x = 4,862,796,458.73
  5. Step 5: Solve for x
    x = 4,862,796,458.73/77,124.32
  6. Step 6: Final answer
    x = 63,051.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.