Home / 66,127.84-91,222.53-42,229.33

Finding the Fourth Proportional to 66,127.84, 91,222.53 and 42,229.33

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Solution

The fourth proportional to 66,127.84, 91,222.53 and 42,229.33 is: 58,254.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,127.84 : 91,222.53 = 42,229.33 : x
  2. Step 2: Convert to fraction form
    66,127.84/91,222.53 = 42,229.33/x
  3. Step 3: Cross multiply
    66,127.84x = 91,222.53 × 42,229.33
  4. Step 4: Simplify right side
    66,127.84x = 3,852,266,322.80
  5. Step 5: Solve for x
    x = 3,852,266,322.80/66,127.84
  6. Step 6: Final answer
    x = 58,254.83

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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.