Home / 74,728.62-112,117.55-30,343.46

Finding the Fourth Proportional to 74,728.62, 112,117.55 and 30,343.46

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Solution

The fourth proportional to 74,728.62, 112,117.55 and 30,343.46 is: 45,525.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,728.62 : 112,117.55 = 30,343.46 : x
  2. Step 2: Convert to fraction form
    74,728.62/112,117.55 = 30,343.46/x
  3. Step 3: Cross multiply
    74,728.62x = 112,117.55 × 30,343.46
  4. Step 4: Simplify right side
    74,728.62x = 3,402,033,681.42
  5. Step 5: Solve for x
    x = 3,402,033,681.42/74,728.62
  6. Step 6: Final answer
    x = 45,525.18

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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.