Home / 76,496.68-105,565.17-42,505.03

Finding the Fourth Proportional to 76,496.68, 105,565.17 and 42,505.03

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Solution

The fourth proportional to 76,496.68, 105,565.17 and 42,505.03 is: 58,656.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,496.68 : 105,565.17 = 42,505.03 : x
  2. Step 2: Convert to fraction form
    76,496.68/105,565.17 = 42,505.03/x
  3. Step 3: Cross multiply
    76,496.68x = 105,565.17 × 42,505.03
  4. Step 4: Simplify right side
    76,496.68x = 4,487,050,717.81
  5. Step 5: Solve for x
    x = 4,487,050,717.81/76,496.68
  6. Step 6: Final answer
    x = 58,656.80

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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.