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Finding the Fourth Proportional to 71,357.63, 98,473.53 and 39,528.59

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Solution

The fourth proportional to 71,357.63, 98,473.53 and 39,528.59 is: 54,549.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,357.63 : 98,473.53 = 39,528.59 : x
  2. Step 2: Convert to fraction form
    71,357.63/98,473.53 = 39,528.59/x
  3. Step 3: Cross multiply
    71,357.63x = 98,473.53 × 39,528.59
  4. Step 4: Simplify right side
    71,357.63x = 3,892,519,793.22
  5. Step 5: Solve for x
    x = 3,892,519,793.22/71,357.63
  6. Step 6: Final answer
    x = 54,549.45

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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.