Home / 78,547.26-117,758.88-39,082.86

Finding the Fourth Proportional to 78,547.26, 117,758.88 and 39,082.86

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Solution

The fourth proportional to 78,547.26, 117,758.88 and 39,082.86 is: 58,593.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,547.26 : 117,758.88 = 39,082.86 : x
  2. Step 2: Convert to fraction form
    78,547.26/117,758.88 = 39,082.86/x
  3. Step 3: Cross multiply
    78,547.26x = 117,758.88 × 39,082.86
  4. Step 4: Simplify right side
    78,547.26x = 4,602,353,820.80
  5. Step 5: Solve for x
    x = 4,602,353,820.80/78,547.26
  6. Step 6: Final answer
    x = 58,593.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.