Home / 75,387.32-113,001.38-57,579.20

Finding the Fourth Proportional to 75,387.32, 113,001.38 and 57,579.20

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Solution

The fourth proportional to 75,387.32, 113,001.38 and 57,579.20 is: 86,307.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,387.32 : 113,001.38 = 57,579.20 : x
  2. Step 2: Convert to fraction form
    75,387.32/113,001.38 = 57,579.20/x
  3. Step 3: Cross multiply
    75,387.32x = 113,001.38 × 57,579.20
  4. Step 4: Simplify right side
    75,387.32x = 6,506,528,206.39
  5. Step 5: Solve for x
    x = 6,506,528,206.39/75,387.32
  6. Step 6: Final answer
    x = 86,307.99

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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.