Home / 71,666.16-98,900.48-39,402.14

Finding the Fourth Proportional to 71,666.16, 98,900.48 and 39,402.14

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Solution

The fourth proportional to 71,666.16, 98,900.48 and 39,402.14 is: 54,375.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,666.16 : 98,900.48 = 39,402.14 : x
  2. Step 2: Convert to fraction form
    71,666.16/98,900.48 = 39,402.14/x
  3. Step 3: Cross multiply
    71,666.16x = 98,900.48 × 39,402.14
  4. Step 4: Simplify right side
    71,666.16x = 3,896,890,362.02
  5. Step 5: Solve for x
    x = 3,896,890,362.02/71,666.16
  6. Step 6: Final answer
    x = 54,375.60

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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.