Home / 72,417.94-99,931.26-40,580.68

Finding the Fourth Proportional to 72,417.94, 99,931.26 and 40,580.68

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Solution

The fourth proportional to 72,417.94, 99,931.26 and 40,580.68 is: 55,998.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,417.94 : 99,931.26 = 40,580.68 : x
  2. Step 2: Convert to fraction form
    72,417.94/99,931.26 = 40,580.68/x
  3. Step 3: Cross multiply
    72,417.94x = 99,931.26 × 40,580.68
  4. Step 4: Simplify right side
    72,417.94x = 4,055,278,484.06
  5. Step 5: Solve for x
    x = 4,055,278,484.06/72,417.94
  6. Step 6: Final answer
    x = 55,998.26

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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.