Home / 56,287.40-84,328.70-45,842.60

Finding the Fourth Proportional to 56,287.40, 84,328.70 and 45,842.60

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Solution

The fourth proportional to 56,287.40, 84,328.70 and 45,842.60 is: 68,680.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,287.40 : 84,328.70 = 45,842.60 : x
  2. Step 2: Convert to fraction form
    56,287.40/84,328.70 = 45,842.60/x
  3. Step 3: Cross multiply
    56,287.40x = 84,328.70 × 45,842.60
  4. Step 4: Simplify right side
    56,287.40x = 3,865,846,862.62
  5. Step 5: Solve for x
    x = 3,865,846,862.62/56,287.40
  6. Step 6: Final answer
    x = 68,680.50

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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.