Home / 78,973.85-108,948.87-47,124.24

Finding the Fourth Proportional to 78,973.85, 108,948.87 and 47,124.24

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Solution

The fourth proportional to 78,973.85, 108,948.87 and 47,124.24 is: 65,010.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,973.85 : 108,948.87 = 47,124.24 : x
  2. Step 2: Convert to fraction form
    78,973.85/108,948.87 = 47,124.24/x
  3. Step 3: Cross multiply
    78,973.85x = 108,948.87 × 47,124.24
  4. Step 4: Simplify right side
    78,973.85x = 5,134,132,697.61
  5. Step 5: Solve for x
    x = 5,134,132,697.61/78,973.85
  6. Step 6: Final answer
    x = 65,010.54

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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.