Home / 66,777.30-92,159.99-42,579.12

Finding the Fourth Proportional to 66,777.30, 92,159.99 and 42,579.12

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Solution

The fourth proportional to 66,777.30, 92,159.99 and 42,579.12 is: 58,763.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,777.30 : 92,159.99 = 42,579.12 : x
  2. Step 2: Convert to fraction form
    66,777.30/92,159.99 = 42,579.12/x
  3. Step 3: Cross multiply
    66,777.30x = 92,159.99 × 42,579.12
  4. Step 4: Simplify right side
    66,777.30x = 3,924,091,273.41
  5. Step 5: Solve for x
    x = 3,924,091,273.41/66,777.30
  6. Step 6: Final answer
    x = 58,763.85

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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.