Home / 49,541.40-74,312.10-28,546.20

Finding the Fourth Proportional to 49,541.40, 74,312.10 and 28,546.20

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Solution

The fourth proportional to 49,541.40, 74,312.10 and 28,546.20 is: 42,819.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,541.40 : 74,312.10 = 28,546.20 : x
  2. Step 2: Convert to fraction form
    49,541.40/74,312.10 = 28,546.20/x
  3. Step 3: Cross multiply
    49,541.40x = 74,312.10 × 28,546.20
  4. Step 4: Simplify right side
    49,541.40x = 2,121,328,069.02
  5. Step 5: Solve for x
    x = 2,121,328,069.02/49,541.40
  6. Step 6: Final answer
    x = 42,819.30

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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.