Home / 77,937.93-107,554.32-42,127.92

Finding the Fourth Proportional to 77,937.93, 107,554.32 and 42,127.92

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Solution

The fourth proportional to 77,937.93, 107,554.32 and 42,127.92 is: 58,136.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,937.93 : 107,554.32 = 42,127.92 : x
  2. Step 2: Convert to fraction form
    77,937.93/107,554.32 = 42,127.92/x
  3. Step 3: Cross multiply
    77,937.93x = 107,554.32 × 42,127.92
  4. Step 4: Simplify right side
    77,937.93x = 4,531,039,788.61
  5. Step 5: Solve for x
    x = 4,531,039,788.61/77,937.93
  6. Step 6: Final answer
    x = 58,136.52

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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.