Home / 80,068.47-120,140.07-35,690.58

Finding the Fourth Proportional to 80,068.47, 120,140.07 and 35,690.58

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Solution

The fourth proportional to 80,068.47, 120,140.07 and 35,690.58 is: 53,552.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,068.47 : 120,140.07 = 35,690.58 : x
  2. Step 2: Convert to fraction form
    80,068.47/120,140.07 = 35,690.58/x
  3. Step 3: Cross multiply
    80,068.47x = 120,140.07 × 35,690.58
  4. Step 4: Simplify right side
    80,068.47x = 4,287,868,779.54
  5. Step 5: Solve for x
    x = 4,287,868,779.54/80,068.47
  6. Step 6: Final answer
    x = 53,552.53

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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.