Home / 71,574.10-98,770.36-39,742.18

Finding the Fourth Proportional to 71,574.10, 98,770.36 and 39,742.18

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Solution

The fourth proportional to 71,574.10, 98,770.36 and 39,742.18 is: 54,843.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,574.10 : 98,770.36 = 39,742.18 : x
  2. Step 2: Convert to fraction form
    71,574.10/98,770.36 = 39,742.18/x
  3. Step 3: Cross multiply
    71,574.10x = 98,770.36 × 39,742.18
  4. Step 4: Simplify right side
    71,574.10x = 3,925,349,425.78
  5. Step 5: Solve for x
    x = 3,925,349,425.78/71,574.10
  6. Step 6: Final answer
    x = 54,843.15

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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.