Home / 57,279.12-78,865.56-52,030.32

Finding the Fourth Proportional to 57,279.12, 78,865.56 and 52,030.32

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Solution

The fourth proportional to 57,279.12, 78,865.56 and 52,030.32 is: 71,638.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,279.12 : 78,865.56 = 52,030.32 : x
  2. Step 2: Convert to fraction form
    57,279.12/78,865.56 = 52,030.32/x
  3. Step 3: Cross multiply
    57,279.12x = 78,865.56 × 52,030.32
  4. Step 4: Simplify right side
    57,279.12x = 4,103,400,323.78
  5. Step 5: Solve for x
    x = 4,103,400,323.78/57,279.12
  6. Step 6: Final answer
    x = 71,638.68

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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.