Home / 85,139.29-117,512.54-49,349.04

Finding the Fourth Proportional to 85,139.29, 117,512.54 and 49,349.04

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Solution

The fourth proportional to 85,139.29, 117,512.54 and 49,349.04 is: 68,113.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,139.29 : 117,512.54 = 49,349.04 : x
  2. Step 2: Convert to fraction form
    85,139.29/117,512.54 = 49,349.04/x
  3. Step 3: Cross multiply
    85,139.29x = 117,512.54 × 49,349.04
  4. Step 4: Simplify right side
    85,139.29x = 5,799,131,036.96
  5. Step 5: Solve for x
    x = 5,799,131,036.96/85,139.29
  6. Step 6: Final answer
    x = 68,113.45

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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.