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Finding the Fourth Proportional to 77,341.68, 106,731.72 and 43,807.68

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Solution

The fourth proportional to 77,341.68, 106,731.72 and 43,807.68 is: 60,454.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,341.68 : 106,731.72 = 43,807.68 : x
  2. Step 2: Convert to fraction form
    77,341.68/106,731.72 = 43,807.68/x
  3. Step 3: Cross multiply
    77,341.68x = 106,731.72 × 43,807.68
  4. Step 4: Simplify right side
    77,341.68x = 4,675,669,035.61
  5. Step 5: Solve for x
    x = 4,675,669,035.61/77,341.68
  6. Step 6: Final answer
    x = 60,454.71

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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.