Home / 66,231.02-91,432.65-51,089.69

Finding the Fourth Proportional to 66,231.02, 91,432.65 and 51,089.69

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Solution

The fourth proportional to 66,231.02, 91,432.65 and 51,089.69 is: 70,529.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,231.02 : 91,432.65 = 51,089.69 : x
  2. Step 2: Convert to fraction form
    66,231.02/91,432.65 = 51,089.69/x
  3. Step 3: Cross multiply
    66,231.02x = 91,432.65 × 51,089.69
  4. Step 4: Simplify right side
    66,231.02x = 4,671,265,287.22
  5. Step 5: Solve for x
    x = 4,671,265,287.22/66,231.02
  6. Step 6: Final answer
    x = 70,529.88

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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.