Home / 72,152.30-99,568.45-40,327.35

Finding the Fourth Proportional to 72,152.30, 99,568.45 and 40,327.35

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Solution

The fourth proportional to 72,152.30, 99,568.45 and 40,327.35 is: 55,650.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,152.30 : 99,568.45 = 40,327.35 : x
  2. Step 2: Convert to fraction form
    72,152.30/99,568.45 = 40,327.35/x
  3. Step 3: Cross multiply
    72,152.30x = 99,568.45 × 40,327.35
  4. Step 4: Simplify right side
    72,152.30x = 4,015,331,032.63
  5. Step 5: Solve for x
    x = 4,015,331,032.63/72,152.30
  6. Step 6: Final answer
    x = 55,650.77

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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.