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Finding the Fourth Proportional to 74,711.34, 103,099.02 and 40,719.16

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Solution

The fourth proportional to 74,711.34, 103,099.02 and 40,719.16 is: 56,191.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,711.34 : 103,099.02 = 40,719.16 : x
  2. Step 2: Convert to fraction form
    74,711.34/103,099.02 = 40,719.16/x
  3. Step 3: Cross multiply
    74,711.34x = 103,099.02 × 40,719.16
  4. Step 4: Simplify right side
    74,711.34x = 4,198,105,491.22
  5. Step 5: Solve for x
    x = 4,198,105,491.22/74,711.34
  6. Step 6: Final answer
    x = 56,191.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.