Home / 66,029.86-91,115.49-38,803.06

Finding the Fourth Proportional to 66,029.86, 91,115.49 and 38,803.06

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Solution

The fourth proportional to 66,029.86, 91,115.49 and 38,803.06 is: 53,544.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,029.86 : 91,115.49 = 38,803.06 : x
  2. Step 2: Convert to fraction form
    66,029.86/91,115.49 = 38,803.06/x
  3. Step 3: Cross multiply
    66,029.86x = 91,115.49 × 38,803.06
  4. Step 4: Simplify right side
    66,029.86x = 3,535,559,825.40
  5. Step 5: Solve for x
    x = 3,535,559,825.40/66,029.86
  6. Step 6: Final answer
    x = 53,544.86

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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.