Home / 86,737.91-130,018.23-49,218.74

Finding the Fourth Proportional to 86,737.91, 130,018.23 and 49,218.74

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Solution

The fourth proportional to 86,737.91, 130,018.23 and 49,218.74 is: 73,777.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,737.91 : 130,018.23 = 49,218.74 : x
  2. Step 2: Convert to fraction form
    86,737.91/130,018.23 = 49,218.74/x
  3. Step 3: Cross multiply
    86,737.91x = 130,018.23 × 49,218.74
  4. Step 4: Simplify right side
    86,737.91x = 6,399,333,295.11
  5. Step 5: Solve for x
    x = 6,399,333,295.11/86,737.91
  6. Step 6: Final answer
    x = 73,777.82

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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.