Home / 74,885.04-112,241.16-28,108.08

Finding the Fourth Proportional to 74,885.04, 112,241.16 and 28,108.08

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Solution

The fourth proportional to 74,885.04, 112,241.16 and 28,108.08 is: 42,129.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,885.04 : 112,241.16 = 28,108.08 : x
  2. Step 2: Convert to fraction form
    74,885.04/112,241.16 = 28,108.08/x
  3. Step 3: Cross multiply
    74,885.04x = 112,241.16 × 28,108.08
  4. Step 4: Simplify right side
    74,885.04x = 3,154,883,504.57
  5. Step 5: Solve for x
    x = 3,154,883,504.57/74,885.04
  6. Step 6: Final answer
    x = 42,129.69

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1.5x scale

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.