Home / 87,046.98-130,395.51-45,406.50

Finding the Fourth Proportional to 87,046.98, 130,395.51 and 45,406.50

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Solution

The fourth proportional to 87,046.98, 130,395.51 and 45,406.50 is: 68,018.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,046.98 : 130,395.51 = 45,406.50 : x
  2. Step 2: Convert to fraction form
    87,046.98/130,395.51 = 45,406.50/x
  3. Step 3: Cross multiply
    87,046.98x = 130,395.51 × 45,406.50
  4. Step 4: Simplify right side
    87,046.98x = 5,920,803,724.82
  5. Step 5: Solve for x
    x = 5,920,803,724.82/87,046.98
  6. Step 6: Final answer
    x = 68,018.49

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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.