Home / 49,613.40-74,420.10-28,618.20

Finding the Fourth Proportional to 49,613.40, 74,420.10 and 28,618.20

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Solution

The fourth proportional to 49,613.40, 74,420.10 and 28,618.20 is: 42,927.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,613.40 : 74,420.10 = 28,618.20 : x
  2. Step 2: Convert to fraction form
    49,613.40/74,420.10 = 28,618.20/x
  3. Step 3: Cross multiply
    49,613.40x = 74,420.10 × 28,618.20
  4. Step 4: Simplify right side
    49,613.40x = 2,129,769,305.82
  5. Step 5: Solve for x
    x = 2,129,769,305.82/49,613.40
  6. Step 6: Final answer
    x = 42,927.30

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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.