Home / 78,724.99-118,044.15-53,793.19

Finding the Fourth Proportional to 78,724.99, 118,044.15 and 53,793.19

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Solution

The fourth proportional to 78,724.99, 118,044.15 and 53,793.19 is: 80,660.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,724.99 : 118,044.15 = 53,793.19 : x
  2. Step 2: Convert to fraction form
    78,724.99/118,044.15 = 53,793.19/x
  3. Step 3: Cross multiply
    78,724.99x = 118,044.15 × 53,793.19
  4. Step 4: Simplify right side
    78,724.99x = 6,349,971,389.34
  5. Step 5: Solve for x
    x = 6,349,971,389.34/78,724.99
  6. Step 6: Final answer
    x = 80,660.17

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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.