Home / 90,827.17-136,239.18-40,871.92

Finding the Fourth Proportional to 90,827.17, 136,239.18 and 40,871.92

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Solution

The fourth proportional to 90,827.17, 136,239.18 and 40,871.92 is: 61,307.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,827.17 : 136,239.18 = 40,871.92 : x
  2. Step 2: Convert to fraction form
    90,827.17/136,239.18 = 40,871.92/x
  3. Step 3: Cross multiply
    90,827.17x = 136,239.18 × 40,871.92
  4. Step 4: Simplify right side
    90,827.17x = 5,568,356,865.83
  5. Step 5: Solve for x
    x = 5,568,356,865.83/90,827.17
  6. Step 6: Final answer
    x = 61,307.17

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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.