Home / 78,024.20-107,673.42-42,214.19

Finding the Fourth Proportional to 78,024.20, 107,673.42 and 42,214.19

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Solution

The fourth proportional to 78,024.20, 107,673.42 and 42,214.19 is: 58,255.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,024.20 : 107,673.42 = 42,214.19 : x
  2. Step 2: Convert to fraction form
    78,024.20/107,673.42 = 42,214.19/x
  3. Step 3: Cross multiply
    78,024.20x = 107,673.42 × 42,214.19
  4. Step 4: Simplify right side
    78,024.20x = 4,545,346,209.83
  5. Step 5: Solve for x
    x = 4,545,346,209.83/78,024.20
  6. Step 6: Final answer
    x = 58,255.60

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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.