Home / 74,430.81-111,658.50-34,489.71

Finding the Fourth Proportional to 74,430.81, 111,658.50 and 34,489.71

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Solution

The fourth proportional to 74,430.81, 111,658.50 and 34,489.71 is: 51,740.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,430.81 : 111,658.50 = 34,489.71 : x
  2. Step 2: Convert to fraction form
    74,430.81/111,658.50 = 34,489.71/x
  3. Step 3: Cross multiply
    74,430.81x = 111,658.50 × 34,489.71
  4. Step 4: Simplify right side
    74,430.81x = 3,851,069,284.04
  5. Step 5: Solve for x
    x = 3,851,069,284.04/74,430.81
  6. Step 6: Final answer
    x = 51,740.26

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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.