Home / 90,901.57-136,351.98-27,721.50

Finding the Fourth Proportional to 90,901.57, 136,351.98 and 27,721.50

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Solution

The fourth proportional to 90,901.57, 136,351.98 and 27,721.50 is: 41,582.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,901.57 : 136,351.98 = 27,721.50 : x
  2. Step 2: Convert to fraction form
    90,901.57/136,351.98 = 27,721.50/x
  3. Step 3: Cross multiply
    90,901.57x = 136,351.98 × 27,721.50
  4. Step 4: Simplify right side
    90,901.57x = 3,779,881,872.91
  5. Step 5: Solve for x
    x = 3,779,881,872.91/90,901.57
  6. Step 6: Final answer
    x = 41,582.14

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1.5x scale

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.