Home / 64,277.07-88,691.79-40,386.81

Finding the Fourth Proportional to 64,277.07, 88,691.79 and 40,386.81

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Solution

The fourth proportional to 64,277.07, 88,691.79 and 40,386.81 is: 55,727.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,277.07 : 88,691.79 = 40,386.81 : x
  2. Step 2: Convert to fraction form
    64,277.07/88,691.79 = 40,386.81/x
  3. Step 3: Cross multiply
    64,277.07x = 88,691.79 × 40,386.81
  4. Step 4: Simplify right side
    64,277.07x = 3,581,978,471.29
  5. Step 5: Solve for x
    x = 3,581,978,471.29/64,277.07
  6. Step 6: Final answer
    x = 55,727.16

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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.