Home / 72,167.40-99,594.18-40,336.20

Finding the Fourth Proportional to 72,167.40, 99,594.18 and 40,336.20

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Solution

The fourth proportional to 72,167.40, 99,594.18 and 40,336.20 is: 55,665.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,167.40 : 99,594.18 = 40,336.20 : x
  2. Step 2: Convert to fraction form
    72,167.40/99,594.18 = 40,336.20/x
  3. Step 3: Cross multiply
    72,167.40x = 99,594.18 × 40,336.20
  4. Step 4: Simplify right side
    72,167.40x = 4,017,250,763.32
  5. Step 5: Solve for x
    x = 4,017,250,763.32/72,167.40
  6. Step 6: Final answer
    x = 55,665.73

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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.