Home / 45,856.10-68,784.15-30,109.70

Finding the Fourth Proportional to 45,856.10, 68,784.15 and 30,109.70

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Solution

The fourth proportional to 45,856.10, 68,784.15 and 30,109.70 is: 45,164.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,856.10 : 68,784.15 = 30,109.70 : x
  2. Step 2: Convert to fraction form
    45,856.10/68,784.15 = 30,109.70/x
  3. Step 3: Cross multiply
    45,856.10x = 68,784.15 × 30,109.70
  4. Step 4: Simplify right side
    45,856.10x = 2,071,070,121.26
  5. Step 5: Solve for x
    x = 2,071,070,121.26/45,856.10
  6. Step 6: Final answer
    x = 45,164.55

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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.