Home / 83,215.04-124,810.25-30,612.22

Finding the Fourth Proportional to 83,215.04, 124,810.25 and 30,612.22

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Solution

The fourth proportional to 83,215.04, 124,810.25 and 30,612.22 is: 45,913.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,215.04 : 124,810.25 = 30,612.22 : x
  2. Step 2: Convert to fraction form
    83,215.04/124,810.25 = 30,612.22/x
  3. Step 3: Cross multiply
    83,215.04x = 124,810.25 × 30,612.22
  4. Step 4: Simplify right side
    83,215.04x = 3,820,718,907.79
  5. Step 5: Solve for x
    x = 3,820,718,907.79/83,215.04
  6. Step 6: Final answer
    x = 45,913.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.