Home / 74,157.76-102,337.51-40,166.11

Finding the Fourth Proportional to 74,157.76, 102,337.51 and 40,166.11

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Solution

The fourth proportional to 74,157.76, 102,337.51 and 40,166.11 is: 55,429.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,157.76 : 102,337.51 = 40,166.11 : x
  2. Step 2: Convert to fraction form
    74,157.76/102,337.51 = 40,166.11/x
  3. Step 3: Cross multiply
    74,157.76x = 102,337.51 × 40,166.11
  4. Step 4: Simplify right side
    74,157.76x = 4,110,499,683.79
  5. Step 5: Solve for x
    x = 4,110,499,683.79/74,157.76
  6. Step 6: Final answer
    x = 55,429.12

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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.