Home / 75,618.90-113,428.35-57,904.20

Finding the Fourth Proportional to 75,618.90, 113,428.35 and 57,904.20

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Solution

The fourth proportional to 75,618.90, 113,428.35 and 57,904.20 is: 86,856.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,618.90 : 113,428.35 = 57,904.20 : x
  2. Step 2: Convert to fraction form
    75,618.90/113,428.35 = 57,904.20/x
  3. Step 3: Cross multiply
    75,618.90x = 113,428.35 × 57,904.20
  4. Step 4: Simplify right side
    75,618.90x = 6,567,977,864.07
  5. Step 5: Solve for x
    x = 6,567,977,864.07/75,618.90
  6. Step 6: Final answer
    x = 86,856.30

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1.5x scale

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.