Home / 90,124.20-124,374.06-49,290.75

Finding the Fourth Proportional to 90,124.20, 124,374.06 and 49,290.75

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Solution

The fourth proportional to 90,124.20, 124,374.06 and 49,290.75 is: 68,022.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,124.20 : 124,374.06 = 49,290.75 : x
  2. Step 2: Convert to fraction form
    90,124.20/124,374.06 = 49,290.75/x
  3. Step 3: Cross multiply
    90,124.20x = 124,374.06 × 49,290.75
  4. Step 4: Simplify right side
    90,124.20x = 6,130,490,697.95
  5. Step 5: Solve for x
    x = 6,130,490,697.95/90,124.20
  6. Step 6: Final answer
    x = 68,022.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.