Home / 75,521.80-113,282.70-70,856.20

Finding the Fourth Proportional to 75,521.80, 113,282.70 and 70,856.20

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Solution

The fourth proportional to 75,521.80, 113,282.70 and 70,856.20 is: 106,284.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,521.80 : 113,282.70 = 70,856.20 : x
  2. Step 2: Convert to fraction form
    75,521.80/113,282.70 = 70,856.20/x
  3. Step 3: Cross multiply
    75,521.80x = 113,282.70 × 70,856.20
  4. Step 4: Simplify right side
    75,521.80x = 8,026,781,647.74
  5. Step 5: Solve for x
    x = 8,026,781,647.74/75,521.80
  6. Step 6: Final answer
    x = 106,284.30

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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.