Home / 85,148.70-117,508.83-47,422.95

Finding the Fourth Proportional to 85,148.70, 117,508.83 and 47,422.95

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Solution

The fourth proportional to 85,148.70, 117,508.83 and 47,422.95 is: 65,445.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,148.70 : 117,508.83 = 47,422.95 : x
  2. Step 2: Convert to fraction form
    85,148.70/117,508.83 = 47,422.95/x
  3. Step 3: Cross multiply
    85,148.70x = 117,508.83 × 47,422.95
  4. Step 4: Simplify right side
    85,148.70x = 5,572,615,369.65
  5. Step 5: Solve for x
    x = 5,572,615,369.65/85,148.70
  6. Step 6: Final answer
    x = 65,445.69

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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.