Home / 74,772.96-112,155.04-28,021.92

Finding the Fourth Proportional to 74,772.96, 112,155.04 and 28,021.92

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Solution

The fourth proportional to 74,772.96, 112,155.04 and 28,021.92 is: 42,031.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,772.96 : 112,155.04 = 28,021.92 : x
  2. Step 2: Convert to fraction form
    74,772.96/112,155.04 = 28,021.92/x
  3. Step 3: Cross multiply
    74,772.96x = 112,155.04 × 28,021.92
  4. Step 4: Simplify right side
    74,772.96x = 3,142,799,558.48
  5. Step 5: Solve for x
    x = 3,142,799,558.48/74,772.96
  6. Step 6: Final answer
    x = 42,031.23

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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.