Home / 72,214.47-108,275.54-30,123.59

Finding the Fourth Proportional to 72,214.47, 108,275.54 and 30,123.59

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Solution

The fourth proportional to 72,214.47, 108,275.54 and 30,123.59 is: 45,166.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,214.47 : 108,275.54 = 30,123.59 : x
  2. Step 2: Convert to fraction form
    72,214.47/108,275.54 = 30,123.59/x
  3. Step 3: Cross multiply
    72,214.47x = 108,275.54 × 30,123.59
  4. Step 4: Simplify right side
    72,214.47x = 3,261,647,281.99
  5. Step 5: Solve for x
    x = 3,261,647,281.99/72,214.47
  6. Step 6: Final answer
    x = 45,166.12

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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.