Home / 62,640.16-86,445.76-34,346.72

Finding the Fourth Proportional to 62,640.16, 86,445.76 and 34,346.72

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Solution

The fourth proportional to 62,640.16, 86,445.76 and 34,346.72 is: 47,399.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,640.16 : 86,445.76 = 34,346.72 : x
  2. Step 2: Convert to fraction form
    62,640.16/86,445.76 = 34,346.72/x
  3. Step 3: Cross multiply
    62,640.16x = 86,445.76 × 34,346.72
  4. Step 4: Simplify right side
    62,640.16x = 2,969,128,313.91
  5. Step 5: Solve for x
    x = 2,969,128,313.91/62,640.16
  6. Step 6: Final answer
    x = 47,399.76

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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.