Home / 65,784.16-90,781.94-35,569.28

Finding the Fourth Proportional to 65,784.16, 90,781.94 and 35,569.28

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Solution

The fourth proportional to 65,784.16, 90,781.94 and 35,569.28 is: 49,085.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,784.16 : 90,781.94 = 35,569.28 : x
  2. Step 2: Convert to fraction form
    65,784.16/90,781.94 = 35,569.28/x
  3. Step 3: Cross multiply
    65,784.16x = 90,781.94 × 35,569.28
  4. Step 4: Simplify right side
    65,784.16x = 3,229,048,242.80
  5. Step 5: Solve for x
    x = 3,229,048,242.80/65,784.16
  6. Step 6: Final answer
    x = 49,085.50

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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.