Home / 57,002.08-78,663.80-33,120.04

Finding the Fourth Proportional to 57,002.08, 78,663.80 and 33,120.04

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Solution

The fourth proportional to 57,002.08, 78,663.80 and 33,120.04 is: 45,706.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,002.08 : 78,663.80 = 33,120.04 : x
  2. Step 2: Convert to fraction form
    57,002.08/78,663.80 = 33,120.04/x
  3. Step 3: Cross multiply
    57,002.08x = 78,663.80 × 33,120.04
  4. Step 4: Simplify right side
    57,002.08x = 2,605,348,202.55
  5. Step 5: Solve for x
    x = 2,605,348,202.55/57,002.08
  6. Step 6: Final answer
    x = 45,706.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.