Home / 57,215.80-78,960.52-35,718.28

Finding the Fourth Proportional to 57,215.80, 78,960.52 and 35,718.28

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Solution

The fourth proportional to 57,215.80, 78,960.52 and 35,718.28 is: 49,292.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,215.80 : 78,960.52 = 35,718.28 : x
  2. Step 2: Convert to fraction form
    57,215.80/78,960.52 = 35,718.28/x
  3. Step 3: Cross multiply
    57,215.80x = 78,960.52 × 35,718.28
  4. Step 4: Simplify right side
    57,215.80x = 2,820,333,962.31
  5. Step 5: Solve for x
    x = 2,820,333,962.31/57,215.80
  6. Step 6: Final answer
    x = 49,292.92

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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.