Home / 87,009.96-130,487.40-53,680.08

Finding the Fourth Proportional to 87,009.96, 130,487.40 and 53,680.08

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Solution

The fourth proportional to 87,009.96, 130,487.40 and 53,680.08 is: 80,503.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,009.96 : 130,487.40 = 53,680.08 : x
  2. Step 2: Convert to fraction form
    87,009.96/130,487.40 = 53,680.08/x
  3. Step 3: Cross multiply
    87,009.96x = 130,487.40 × 53,680.08
  4. Step 4: Simplify right side
    87,009.96x = 7,004,574,070.99
  5. Step 5: Solve for x
    x = 7,004,574,070.99/87,009.96
  6. Step 6: Final answer
    x = 80,503.13

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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.