Home / 71,491.17-98,669.56-39,670.32

Finding the Fourth Proportional to 71,491.17, 98,669.56 and 39,670.32

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Solution

The fourth proportional to 71,491.17, 98,669.56 and 39,670.32 is: 54,751.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,491.17 : 98,669.56 = 39,670.32 : x
  2. Step 2: Convert to fraction form
    71,491.17/98,669.56 = 39,670.32/x
  3. Step 3: Cross multiply
    71,491.17x = 98,669.56 × 39,670.32
  4. Step 4: Simplify right side
    71,491.17x = 3,914,253,019.46
  5. Step 5: Solve for x
    x = 3,914,253,019.46/71,491.17
  6. Step 6: Final answer
    x = 54,751.56

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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.