Home / 72,766.32-100,417.37-40,935.24

Finding the Fourth Proportional to 72,766.32, 100,417.37 and 40,935.24

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Solution

The fourth proportional to 72,766.32, 100,417.37 and 40,935.24 is: 56,490.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,766.32 : 100,417.37 = 40,935.24 : x
  2. Step 2: Convert to fraction form
    72,766.32/100,417.37 = 40,935.24/x
  3. Step 3: Cross multiply
    72,766.32x = 100,417.37 × 40,935.24
  4. Step 4: Simplify right side
    72,766.32x = 4,110,609,141.12
  5. Step 5: Solve for x
    x = 4,110,609,141.12/72,766.32
  6. Step 6: Final answer
    x = 56,490.55

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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.