Home / 90,686.78-136,030.01-24,126.91

Finding the Fourth Proportional to 90,686.78, 136,030.01 and 24,126.91

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Solution

The fourth proportional to 90,686.78, 136,030.01 and 24,126.91 is: 36,190.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,686.78 : 136,030.01 = 24,126.91 : x
  2. Step 2: Convert to fraction form
    90,686.78/136,030.01 = 24,126.91/x
  3. Step 3: Cross multiply
    90,686.78x = 136,030.01 × 24,126.91
  4. Step 4: Simplify right side
    90,686.78x = 3,281,983,347.86
  5. Step 5: Solve for x
    x = 3,281,983,347.86/90,686.78
  6. Step 6: Final answer
    x = 36,190.32

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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.