Home / 47,949.12-66,158.28-30,949.77

Finding the Fourth Proportional to 47,949.12, 66,158.28 and 30,949.77

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Solution

The fourth proportional to 47,949.12, 66,158.28 and 30,949.77 is: 42,703.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,949.12 : 66,158.28 = 30,949.77 : x
  2. Step 2: Convert to fraction form
    47,949.12/66,158.28 = 30,949.77/x
  3. Step 3: Cross multiply
    47,949.12x = 66,158.28 × 30,949.77
  4. Step 4: Simplify right side
    47,949.12x = 2,047,583,549.60
  5. Step 5: Solve for x
    x = 2,047,583,549.60/47,949.12
  6. Step 6: Final answer
    x = 42,703.26

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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.