Home / 72,549.35-100,118.52-40,284.42

Finding the Fourth Proportional to 72,549.35, 100,118.52 and 40,284.42

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Solution

The fourth proportional to 72,549.35, 100,118.52 and 40,284.42 is: 55,592.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,549.35 : 100,118.52 = 40,284.42 : x
  2. Step 2: Convert to fraction form
    72,549.35/100,118.52 = 40,284.42/x
  3. Step 3: Cross multiply
    72,549.35x = 100,118.52 × 40,284.42
  4. Step 4: Simplify right side
    72,549.35x = 4,033,216,509.46
  5. Step 5: Solve for x
    x = 4,033,216,509.46/72,549.35
  6. Step 6: Final answer
    x = 55,592.73

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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.