Home / 45,707.60-68,561.40-28,211.60

Finding the Fourth Proportional to 45,707.60, 68,561.40 and 28,211.60

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Solution

The fourth proportional to 45,707.60, 68,561.40 and 28,211.60 is: 42,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,707.60 : 68,561.40 = 28,211.60 : x
  2. Step 2: Convert to fraction form
    45,707.60/68,561.40 = 28,211.60/x
  3. Step 3: Cross multiply
    45,707.60x = 68,561.40 × 28,211.60
  4. Step 4: Simplify right side
    45,707.60x = 1,934,226,792.24
  5. Step 5: Solve for x
    x = 1,934,226,792.24/45,707.60
  6. Step 6: Final answer
    x = 42,317.40

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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.