Home / 64,276.07-88,690.41-40,385.81

Finding the Fourth Proportional to 64,276.07, 88,690.41 and 40,385.81

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Solution

The fourth proportional to 64,276.07, 88,690.41 and 40,385.81 is: 55,725.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,276.07 : 88,690.41 = 40,385.81 : x
  2. Step 2: Convert to fraction form
    64,276.07/88,690.41 = 40,385.81/x
  3. Step 3: Cross multiply
    64,276.07x = 88,690.41 × 40,385.81
  4. Step 4: Simplify right side
    64,276.07x = 3,581,834,268.81
  5. Step 5: Solve for x
    x = 3,581,834,268.81/64,276.07
  6. Step 6: Final answer
    x = 55,725.79

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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.