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Finding the Fourth Proportional to 65,963.04, 91,027 and 37,663.20

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Solution

The fourth proportional to 65,963.04, 91,027 and 37,663.20 is: 51,974.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,963.04 : 91,027 = 37,663.20 : x
  2. Step 2: Convert to fraction form
    65,963.04/91,027 = 37,663.20/x
  3. Step 3: Cross multiply
    65,963.04x = 91,027 × 37,663.20
  4. Step 4: Simplify right side
    65,963.04x = 3,428,368,106.40
  5. Step 5: Solve for x
    x = 3,428,368,106.40/65,963.04
  6. Step 6: Final answer
    x = 51,974.08

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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.