Home / 87,454.77-130,500.09-78,030.01

Finding the Fourth Proportional to 87,454.77, 130,500.09 and 78,030.01

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Solution

The fourth proportional to 87,454.77, 130,500.09 and 78,030.01 is: 116,436.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,454.77 : 130,500.09 = 78,030.01 : x
  2. Step 2: Convert to fraction form
    87,454.77/130,500.09 = 78,030.01/x
  3. Step 3: Cross multiply
    87,454.77x = 130,500.09 × 78,030.01
  4. Step 4: Simplify right side
    87,454.77x = 10,182,923,442.90
  5. Step 5: Solve for x
    x = 10,182,923,442.90/87,454.77
  6. Step 6: Final answer
    x = 116,436.46

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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.