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Finding the Fourth Proportional to 40,077.60, 60,116.64 and 17,885.76

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Solution

The fourth proportional to 40,077.60, 60,116.64 and 17,885.76 is: 26,828.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,077.60 : 60,116.64 = 17,885.76 : x
  2. Step 2: Convert to fraction form
    40,077.60/60,116.64 = 17,885.76/x
  3. Step 3: Cross multiply
    40,077.60x = 60,116.64 × 17,885.76
  4. Step 4: Simplify right side
    40,077.60x = 1,075,231,795.05
  5. Step 5: Solve for x
    x = 1,075,231,795.05/40,077.60
  6. Step 6: Final answer
    x = 26,828.75

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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.