Home / 71,475.98-98,628.39-39,637.10

Finding the Fourth Proportional to 71,475.98, 98,628.39 and 39,637.10

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Solution

The fourth proportional to 71,475.98, 98,628.39 and 39,637.10 is: 54,694.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,475.98 : 98,628.39 = 39,637.10 : x
  2. Step 2: Convert to fraction form
    71,475.98/98,628.39 = 39,637.10/x
  3. Step 3: Cross multiply
    71,475.98x = 98,628.39 × 39,637.10
  4. Step 4: Simplify right side
    71,475.98x = 3,909,343,357.27
  5. Step 5: Solve for x
    x = 3,909,343,357.27/71,475.98
  6. Step 6: Final answer
    x = 54,694.51

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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.