Home / 66,060.29-91,037.36-64,845.72

Finding the Fourth Proportional to 66,060.29, 91,037.36 and 64,845.72

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Solution

The fourth proportional to 66,060.29, 91,037.36 and 64,845.72 is: 89,363.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,060.29 : 91,037.36 = 64,845.72 : x
  2. Step 2: Convert to fraction form
    66,060.29/91,037.36 = 64,845.72/x
  3. Step 3: Cross multiply
    66,060.29x = 91,037.36 × 64,845.72
  4. Step 4: Simplify right side
    66,060.29x = 5,903,382,831.87
  5. Step 5: Solve for x
    x = 5,903,382,831.87/66,060.29
  6. Step 6: Final answer
    x = 89,363.56

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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.