Home / 85,615.29-118,142.69-47,882.25

Finding the Fourth Proportional to 85,615.29, 118,142.69 and 47,882.25

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Solution

The fourth proportional to 85,615.29, 118,142.69 and 47,882.25 is: 66,073.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,615.29 : 118,142.69 = 47,882.25 : x
  2. Step 2: Convert to fraction form
    85,615.29/118,142.69 = 47,882.25/x
  3. Step 3: Cross multiply
    85,615.29x = 118,142.69 × 47,882.25
  4. Step 4: Simplify right side
    85,615.29x = 5,656,937,578.84
  5. Step 5: Solve for x
    x = 5,656,937,578.84/85,615.29
  6. Step 6: Final answer
    x = 66,073.92

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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.