Home / 71,350.74-106,445.07-65,564.78

Finding the Fourth Proportional to 71,350.74, 106,445.07 and 65,564.78

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Solution

The fourth proportional to 71,350.74, 106,445.07 and 65,564.78 is: 97,813.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,350.74 : 106,445.07 = 65,564.78 : x
  2. Step 2: Convert to fraction form
    71,350.74/106,445.07 = 65,564.78/x
  3. Step 3: Cross multiply
    71,350.74x = 106,445.07 × 65,564.78
  4. Step 4: Simplify right side
    71,350.74x = 6,979,047,064.41
  5. Step 5: Solve for x
    x = 6,979,047,064.41/71,350.74
  6. Step 6: Final answer
    x = 97,813.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.