Home / 65,948.36-91,008.42-36,140.36

Finding the Fourth Proportional to 65,948.36, 91,008.42 and 36,140.36

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Solution

The fourth proportional to 65,948.36, 91,008.42 and 36,140.36 is: 49,873.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,948.36 : 91,008.42 = 36,140.36 : x
  2. Step 2: Convert to fraction form
    65,948.36/91,008.42 = 36,140.36/x
  3. Step 3: Cross multiply
    65,948.36x = 91,008.42 × 36,140.36
  4. Step 4: Simplify right side
    65,948.36x = 3,289,077,061.83
  5. Step 5: Solve for x
    x = 3,289,077,061.83/65,948.36
  6. Step 6: Final answer
    x = 49,873.52

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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.