Home / 74,420.16-111,632.40-32,870.40

Finding the Fourth Proportional to 74,420.16, 111,632.40 and 32,870.40

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Solution

The fourth proportional to 74,420.16, 111,632.40 and 32,870.40 is: 49,306.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,420.16 : 111,632.40 = 32,870.40 : x
  2. Step 2: Convert to fraction form
    74,420.16/111,632.40 = 32,870.40/x
  3. Step 3: Cross multiply
    74,420.16x = 111,632.40 × 32,870.40
  4. Step 4: Simplify right side
    74,420.16x = 3,669,401,640.96
  5. Step 5: Solve for x
    x = 3,669,401,640.96/74,420.16
  6. Step 6: Final answer
    x = 49,306.55

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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.