Home / 74,962.32-112,459.68-28,215.06

Finding the Fourth Proportional to 74,962.32, 112,459.68 and 28,215.06

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Solution

The fourth proportional to 74,962.32, 112,459.68 and 28,215.06 is: 42,328.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,962.32 : 112,459.68 = 28,215.06 : x
  2. Step 2: Convert to fraction form
    74,962.32/112,459.68 = 28,215.06/x
  3. Step 3: Cross multiply
    74,962.32x = 112,459.68 × 28,215.06
  4. Step 4: Simplify right side
    74,962.32x = 3,173,056,618.78
  5. Step 5: Solve for x
    x = 3,173,056,618.78/74,962.32
  6. Step 6: Final answer
    x = 42,328.69

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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.