Home / 87,886.38-121,288.78-52,068.78

Finding the Fourth Proportional to 87,886.38, 121,288.78 and 52,068.78

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Solution

The fourth proportional to 87,886.38, 121,288.78 and 52,068.78 is: 71,858.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,886.38 : 121,288.78 = 52,068.78 : x
  2. Step 2: Convert to fraction form
    87,886.38/121,288.78 = 52,068.78/x
  3. Step 3: Cross multiply
    87,886.38x = 121,288.78 × 52,068.78
  4. Step 4: Simplify right side
    87,886.38x = 6,315,358,802.29
  5. Step 5: Solve for x
    x = 6,315,358,802.29/87,886.38
  6. Step 6: Final answer
    x = 71,858.22

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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.