Home / 87,886.17-121,282.31-47,599.02

Finding the Fourth Proportional to 87,886.17, 121,282.31 and 47,599.02

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Solution

The fourth proportional to 87,886.17, 121,282.31 and 47,599.02 is: 65,686.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,886.17 : 121,282.31 = 47,599.02 : x
  2. Step 2: Convert to fraction form
    87,886.17/121,282.31 = 47,599.02/x
  3. Step 3: Cross multiply
    87,886.17x = 121,282.31 × 47,599.02
  4. Step 4: Simplify right side
    87,886.17x = 5,772,919,218.33
  5. Step 5: Solve for x
    x = 5,772,919,218.33/87,886.17
  6. Step 6: Final answer
    x = 65,686.32

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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.