Home / 57,387.36-86,065.20-40,698.24

Finding the Fourth Proportional to 57,387.36, 86,065.20 and 40,698.24

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Solution

The fourth proportional to 57,387.36, 86,065.20 and 40,698.24 is: 61,036.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,387.36 : 86,065.20 = 40,698.24 : x
  2. Step 2: Convert to fraction form
    57,387.36/86,065.20 = 40,698.24/x
  3. Step 3: Cross multiply
    57,387.36x = 86,065.20 × 40,698.24
  4. Step 4: Simplify right side
    57,387.36x = 3,502,702,165.25
  5. Step 5: Solve for x
    x = 3,502,702,165.25/57,387.36
  6. Step 6: Final answer
    x = 61,036.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.