Home / 74,705.04-112,089.06-30,320.28

Finding the Fourth Proportional to 74,705.04, 112,089.06 and 30,320.28

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Solution

The fourth proportional to 74,705.04, 112,089.06 and 30,320.28 is: 45,493.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,705.04 : 112,089.06 = 30,320.28 : x
  2. Step 2: Convert to fraction form
    74,705.04/112,089.06 = 30,320.28/x
  3. Step 3: Cross multiply
    74,705.04x = 112,089.06 × 30,320.28
  4. Step 4: Simplify right side
    74,705.04x = 3,398,571,684.14
  5. Step 5: Solve for x
    x = 3,398,571,684.14/74,705.04
  6. Step 6: Final answer
    x = 45,493.20

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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.