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Finding the Fourth Proportional to 40,430.80, 60,581.40 and 26,563.60

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Solution

The fourth proportional to 40,430.80, 60,581.40 and 26,563.60 is: 39,802.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,430.80 : 60,581.40 = 26,563.60 : x
  2. Step 2: Convert to fraction form
    40,430.80/60,581.40 = 26,563.60/x
  3. Step 3: Cross multiply
    40,430.80x = 60,581.40 × 26,563.60
  4. Step 4: Simplify right side
    40,430.80x = 1,609,260,077.04
  5. Step 5: Solve for x
    x = 1,609,260,077.04/40,430.80
  6. Step 6: Final answer
    x = 39,802.83

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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.