Home / 115,061.60-172,657.20-44,931.80

Finding the Fourth Proportional to 115,061.60, 172,657.20 and 44,931.80

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Solution

The fourth proportional to 115,061.60, 172,657.20 and 44,931.80 is: 67,423.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,061.60 : 172,657.20 = 44,931.80 : x
  2. Step 2: Convert to fraction form
    115,061.60/172,657.20 = 44,931.80/x
  3. Step 3: Cross multiply
    115,061.60x = 172,657.20 × 44,931.80
  4. Step 4: Simplify right side
    115,061.60x = 7,757,798,778.96
  5. Step 5: Solve for x
    x = 7,757,798,778.96/115,061.60
  6. Step 6: Final answer
    x = 67,423.00

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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.