Home / 57,013.53-78,680.34-31,863.03

Finding the Fourth Proportional to 57,013.53, 78,680.34 and 31,863.03

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Solution

The fourth proportional to 57,013.53, 78,680.34 and 31,863.03 is: 43,971.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,013.53 : 78,680.34 = 31,863.03 : x
  2. Step 2: Convert to fraction form
    57,013.53/78,680.34 = 31,863.03/x
  3. Step 3: Cross multiply
    57,013.53x = 78,680.34 × 31,863.03
  4. Step 4: Simplify right side
    57,013.53x = 2,506,994,033.83
  5. Step 5: Solve for x
    x = 2,506,994,033.83/57,013.53
  6. Step 6: Final answer
    x = 43,971.91

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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.