Home / 87,818.48-121,143.85-53,834.93

Finding the Fourth Proportional to 87,818.48, 121,143.85 and 53,834.93

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Solution

The fourth proportional to 87,818.48, 121,143.85 and 53,834.93 is: 74,264.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,818.48 : 121,143.85 = 53,834.93 : x
  2. Step 2: Convert to fraction form
    87,818.48/121,143.85 = 53,834.93/x
  3. Step 3: Cross multiply
    87,818.48x = 121,143.85 × 53,834.93
  4. Step 4: Simplify right side
    87,818.48x = 6,521,770,701.48
  5. Step 5: Solve for x
    x = 6,521,770,701.48/87,818.48
  6. Step 6: Final answer
    x = 74,264.22

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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.