Home / 87,063.40-130,595.12-40,290.76

Finding the Fourth Proportional to 87,063.40, 130,595.12 and 40,290.76

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Solution

The fourth proportional to 87,063.40, 130,595.12 and 40,290.76 is: 60,436.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,063.40 : 130,595.12 = 40,290.76 : x
  2. Step 2: Convert to fraction form
    87,063.40/130,595.12 = 40,290.76/x
  3. Step 3: Cross multiply
    87,063.40x = 130,595.12 × 40,290.76
  4. Step 4: Simplify right side
    87,063.40x = 5,261,776,637.09
  5. Step 5: Solve for x
    x = 5,261,776,637.09/87,063.40
  6. Step 6: Final answer
    x = 60,436.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.