Home / 72,554.04-100,124.28-40,723.20

Finding the Fourth Proportional to 72,554.04, 100,124.28 and 40,723.20

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Solution

The fourth proportional to 72,554.04, 100,124.28 and 40,723.20 is: 56,197.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,554.04 : 100,124.28 = 40,723.20 : x
  2. Step 2: Convert to fraction form
    72,554.04/100,124.28 = 40,723.20/x
  3. Step 3: Cross multiply
    72,554.04x = 100,124.28 × 40,723.20
  4. Step 4: Simplify right side
    72,554.04x = 4,077,381,079.30
  5. Step 5: Solve for x
    x = 4,077,381,079.30/72,554.04
  6. Step 6: Final answer
    x = 56,197.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.