Home / 66,402.81-91,633.20-36,187.48

Finding the Fourth Proportional to 66,402.81, 91,633.20 and 36,187.48

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Solution

The fourth proportional to 66,402.81, 91,633.20 and 36,187.48 is: 49,937.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,402.81 : 91,633.20 = 36,187.48 : x
  2. Step 2: Convert to fraction form
    66,402.81/91,633.20 = 36,187.48/x
  3. Step 3: Cross multiply
    66,402.81x = 91,633.20 × 36,187.48
  4. Step 4: Simplify right side
    66,402.81x = 3,315,974,411.40
  5. Step 5: Solve for x
    x = 3,315,974,411.40/66,402.81
  6. Step 6: Final answer
    x = 49,937.26

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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.