Home / 76,931.17-106,165.11-42,475.93

Finding the Fourth Proportional to 76,931.17, 106,165.11 and 42,475.93

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Solution

The fourth proportional to 76,931.17, 106,165.11 and 42,475.93 is: 58,616.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,931.17 : 106,165.11 = 42,475.93 : x
  2. Step 2: Convert to fraction form
    76,931.17/106,165.11 = 42,475.93/x
  3. Step 3: Cross multiply
    76,931.17x = 106,165.11 × 42,475.93
  4. Step 4: Simplify right side
    76,931.17x = 4,509,461,780.80
  5. Step 5: Solve for x
    x = 4,509,461,780.80/76,931.17
  6. Step 6: Final answer
    x = 58,616.84

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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.