Home / 57,199.07-78,937.85-31,708.45

Finding the Fourth Proportional to 57,199.07, 78,937.85 and 31,708.45

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Solution

The fourth proportional to 57,199.07, 78,937.85 and 31,708.45 is: 43,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,199.07 : 78,937.85 = 31,708.45 : x
  2. Step 2: Convert to fraction form
    57,199.07/78,937.85 = 31,708.45/x
  3. Step 3: Cross multiply
    57,199.07x = 78,937.85 × 31,708.45
  4. Step 4: Simplify right side
    57,199.07x = 2,502,996,869.83
  5. Step 5: Solve for x
    x = 2,502,996,869.83/57,199.07
  6. Step 6: Final answer
    x = 43,759.40

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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.