Home / 57,065.40-78,754.14-31,910.04

Finding the Fourth Proportional to 57,065.40, 78,754.14 and 31,910.04

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Solution

The fourth proportional to 57,065.40, 78,754.14 and 31,910.04 is: 44,038.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,065.40 : 78,754.14 = 31,910.04 : x
  2. Step 2: Convert to fraction form
    57,065.40/78,754.14 = 31,910.04/x
  3. Step 3: Cross multiply
    57,065.40x = 78,754.14 × 31,910.04
  4. Step 4: Simplify right side
    57,065.40x = 2,513,047,757.57
  5. Step 5: Solve for x
    x = 2,513,047,757.57/57,065.40
  6. Step 6: Final answer
    x = 44,038.03

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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.