Home / 71,403.60-98,536.96-39,574.55

Finding the Fourth Proportional to 71,403.60, 98,536.96 and 39,574.55

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Solution

The fourth proportional to 71,403.60, 98,536.96 and 39,574.55 is: 54,612.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,403.60 : 98,536.96 = 39,574.55 : x
  2. Step 2: Convert to fraction form
    71,403.60/98,536.96 = 39,574.55/x
  3. Step 3: Cross multiply
    71,403.60x = 98,536.96 × 39,574.55
  4. Step 4: Simplify right side
    71,403.60x = 3,899,555,159.81
  5. Step 5: Solve for x
    x = 3,899,555,159.81/71,403.60
  6. Step 6: Final answer
    x = 54,612.86

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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.