Home / 78,711.50-118,032.39-22,538.81

Finding the Fourth Proportional to 78,711.50, 118,032.39 and 22,538.81

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Solution

The fourth proportional to 78,711.50, 118,032.39 and 22,538.81 is: 33,798.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,711.50 : 118,032.39 = 22,538.81 : x
  2. Step 2: Convert to fraction form
    78,711.50/118,032.39 = 22,538.81/x
  3. Step 3: Cross multiply
    78,711.50x = 118,032.39 × 22,538.81
  4. Step 4: Simplify right side
    78,711.50x = 2,660,309,243.20
  5. Step 5: Solve for x
    x = 2,660,309,243.20/78,711.50
  6. Step 6: Final answer
    x = 33,798.23

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1.5x scale

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.