Home / 87,785.73-121,143.44-47,498.60

Finding the Fourth Proportional to 87,785.73, 121,143.44 and 47,498.60

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Solution

The fourth proportional to 87,785.73, 121,143.44 and 47,498.60 is: 65,547.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,785.73 : 121,143.44 = 47,498.60 : x
  2. Step 2: Convert to fraction form
    87,785.73/121,143.44 = 47,498.60/x
  3. Step 3: Cross multiply
    87,785.73x = 121,143.44 × 47,498.60
  4. Step 4: Simplify right side
    87,785.73x = 5,754,144,220.79
  5. Step 5: Solve for x
    x = 5,754,144,220.79/87,785.73
  6. Step 6: Final answer
    x = 65,547.60

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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.