Home / 51,946.12-77,919.18-42,070.60

Finding the Fourth Proportional to 51,946.12, 77,919.18 and 42,070.60

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Solution

The fourth proportional to 51,946.12, 77,919.18 and 42,070.60 is: 63,105.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,946.12 : 77,919.18 = 42,070.60 : x
  2. Step 2: Convert to fraction form
    51,946.12/77,919.18 = 42,070.60/x
  3. Step 3: Cross multiply
    51,946.12x = 77,919.18 × 42,070.60
  4. Step 4: Simplify right side
    51,946.12x = 3,278,106,654.11
  5. Step 5: Solve for x
    x = 3,278,106,654.11/51,946.12
  6. Step 6: Final answer
    x = 63,105.90

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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.