Home / 57,715.40-86,573.10-49,842.20

Finding the Fourth Proportional to 57,715.40, 86,573.10 and 49,842.20

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Solution

The fourth proportional to 57,715.40, 86,573.10 and 49,842.20 is: 74,763.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,715.40 : 86,573.10 = 49,842.20 : x
  2. Step 2: Convert to fraction form
    57,715.40/86,573.10 = 49,842.20/x
  3. Step 3: Cross multiply
    57,715.40x = 86,573.10 × 49,842.20
  4. Step 4: Simplify right side
    57,715.40x = 4,314,993,764.82
  5. Step 5: Solve for x
    x = 4,314,993,764.82/57,715.40
  6. Step 6: Final answer
    x = 74,763.30

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1.5x scale

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.