Home / 87,829.83-121,104.86-69,925.59

Finding the Fourth Proportional to 87,829.83, 121,104.86 and 69,925.59

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Solution

The fourth proportional to 87,829.83, 121,104.86 and 69,925.59 is: 96,417.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,829.83 : 121,104.86 = 69,925.59 : x
  2. Step 2: Convert to fraction form
    87,829.83/121,104.86 = 69,925.59/x
  3. Step 3: Cross multiply
    87,829.83x = 121,104.86 × 69,925.59
  4. Step 4: Simplify right side
    87,829.83x = 8,468,328,437.74
  5. Step 5: Solve for x
    x = 8,468,328,437.74/87,829.83
  6. Step 6: Final answer
    x = 96,417.45

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1.5x scale

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.