Home / 87,813.16-121,182.18-48,069.16

Finding the Fourth Proportional to 87,813.16, 121,182.18 and 48,069.16

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Solution

The fourth proportional to 87,813.16, 121,182.18 and 48,069.16 is: 66,335.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,813.16 : 121,182.18 = 48,069.16 : x
  2. Step 2: Convert to fraction form
    87,813.16/121,182.18 = 48,069.16/x
  3. Step 3: Cross multiply
    87,813.16x = 121,182.18 × 48,069.16
  4. Step 4: Simplify right side
    87,813.16x = 5,825,125,599.57
  5. Step 5: Solve for x
    x = 5,825,125,599.57/87,813.16
  6. Step 6: Final answer
    x = 66,335.45

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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.