Home / 66,126.84-91,221.15-42,228.33

Finding the Fourth Proportional to 66,126.84, 91,221.15 and 42,228.33

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Solution

The fourth proportional to 66,126.84, 91,221.15 and 42,228.33 is: 58,253.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,126.84 : 91,221.15 = 42,228.33 : x
  2. Step 2: Convert to fraction form
    66,126.84/91,221.15 = 42,228.33/x
  3. Step 3: Cross multiply
    66,126.84x = 91,221.15 × 42,228.33
  4. Step 4: Simplify right side
    66,126.84x = 3,852,116,825.18
  5. Step 5: Solve for x
    x = 3,852,116,825.18/66,126.84
  6. Step 6: Final answer
    x = 58,253.45

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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.