Home / 87,075.60-130,613.40-40,419.60

Finding the Fourth Proportional to 87,075.60, 130,613.40 and 40,419.60

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Solution

The fourth proportional to 87,075.60, 130,613.40 and 40,419.60 is: 60,629.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,075.60 : 130,613.40 = 40,419.60 : x
  2. Step 2: Convert to fraction form
    87,075.60/130,613.40 = 40,419.60/x
  3. Step 3: Cross multiply
    87,075.60x = 130,613.40 × 40,419.60
  4. Step 4: Simplify right side
    87,075.60x = 5,279,341,382.64
  5. Step 5: Solve for x
    x = 5,279,341,382.64/87,075.60
  6. Step 6: Final answer
    x = 60,629.40

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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.