Home / 61,843.12-85,376.58-48,385.78

Finding the Fourth Proportional to 61,843.12, 85,376.58 and 48,385.78

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Solution

The fourth proportional to 61,843.12, 85,376.58 and 48,385.78 is: 66,798.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,843.12 : 85,376.58 = 48,385.78 : x
  2. Step 2: Convert to fraction form
    61,843.12/85,376.58 = 48,385.78/x
  3. Step 3: Cross multiply
    61,843.12x = 85,376.58 × 48,385.78
  4. Step 4: Simplify right side
    61,843.12x = 4,131,012,417.03
  5. Step 5: Solve for x
    x = 4,131,012,417.03/61,843.12
  6. Step 6: Final answer
    x = 66,798.25

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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.