Home / 90,034.72-124,245.76-49,746.40

Finding the Fourth Proportional to 90,034.72, 124,245.76 and 49,746.40

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Solution

The fourth proportional to 90,034.72, 124,245.76 and 49,746.40 is: 68,648.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,034.72 : 124,245.76 = 49,746.40 : x
  2. Step 2: Convert to fraction form
    90,034.72/124,245.76 = 49,746.40/x
  3. Step 3: Cross multiply
    90,034.72x = 124,245.76 × 49,746.40
  4. Step 4: Simplify right side
    90,034.72x = 6,180,779,275.26
  5. Step 5: Solve for x
    x = 6,180,779,275.26/90,034.72
  6. Step 6: Final answer
    x = 68,648.84

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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.