Home / 87,260.40-130,784.78-39,810.49

Finding the Fourth Proportional to 87,260.40, 130,784.78 and 39,810.49

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Solution

The fourth proportional to 87,260.40, 130,784.78 and 39,810.49 is: 59,667.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,260.40 : 130,784.78 = 39,810.49 : x
  2. Step 2: Convert to fraction form
    87,260.40/130,784.78 = 39,810.49/x
  3. Step 3: Cross multiply
    87,260.40x = 130,784.78 × 39,810.49
  4. Step 4: Simplify right side
    87,260.40x = 5,206,605,948.91
  5. Step 5: Solve for x
    x = 5,206,605,948.91/87,260.40
  6. Step 6: Final answer
    x = 59,667.45

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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.