Home / 87,922.11-121,332.54-47,636.15

Finding the Fourth Proportional to 87,922.11, 121,332.54 and 47,636.15

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Solution

The fourth proportional to 87,922.11, 121,332.54 and 47,636.15 is: 65,737.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,922.11 : 121,332.54 = 47,636.15 : x
  2. Step 2: Convert to fraction form
    87,922.11/121,332.54 = 47,636.15/x
  3. Step 3: Cross multiply
    87,922.11x = 121,332.54 × 47,636.15
  4. Step 4: Simplify right side
    87,922.11x = 5,779,815,075.32
  5. Step 5: Solve for x
    x = 5,779,815,075.32/87,922.11
  6. Step 6: Final answer
    x = 65,737.90

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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.