Home / 66,127.40-91,210.48-42,243.44

Finding the Fourth Proportional to 66,127.40, 91,210.48 and 42,243.44

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Solution

The fourth proportional to 66,127.40, 91,210.48 and 42,243.44 is: 58,266.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,127.40 : 91,210.48 = 42,243.44 : x
  2. Step 2: Convert to fraction form
    66,127.40/91,210.48 = 42,243.44/x
  3. Step 3: Cross multiply
    66,127.40x = 91,210.48 × 42,243.44
  4. Step 4: Simplify right side
    66,127.40x = 3,853,044,439.25
  5. Step 5: Solve for x
    x = 3,853,044,439.25/66,127.40
  6. Step 6: Final answer
    x = 58,266.99

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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.