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Finding the Fourth Proportional to 84,580.67, 126,520.37 and 64,437.75

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Solution

The fourth proportional to 84,580.67, 126,520.37 and 64,437.75 is: 96,389.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,580.67 : 126,520.37 = 64,437.75 : x
  2. Step 2: Convert to fraction form
    84,580.67/126,520.37 = 64,437.75/x
  3. Step 3: Cross multiply
    84,580.67x = 126,520.37 × 64,437.75
  4. Step 4: Simplify right side
    84,580.67x = 8,152,687,017.18
  5. Step 5: Solve for x
    x = 8,152,687,017.18/84,580.67
  6. Step 6: Final answer
    x = 96,389.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.