Home / 57,203.31-78,853.06-40,159.74

Finding the Fourth Proportional to 57,203.31, 78,853.06 and 40,159.74

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Solution

The fourth proportional to 57,203.31, 78,853.06 and 40,159.74 is: 55,359.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,203.31 : 78,853.06 = 40,159.74 : x
  2. Step 2: Convert to fraction form
    57,203.31/78,853.06 = 40,159.74/x
  3. Step 3: Cross multiply
    57,203.31x = 78,853.06 × 40,159.74
  4. Step 4: Simplify right side
    57,203.31x = 3,166,718,488.20
  5. Step 5: Solve for x
    x = 3,166,718,488.20/57,203.31
  6. Step 6: Final answer
    x = 55,359.01

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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.