Home / 81,283.13-112,168.09-45,472.35

Finding the Fourth Proportional to 81,283.13, 112,168.09 and 45,472.35

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Solution

The fourth proportional to 81,283.13, 112,168.09 and 45,472.35 is: 62,750.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,283.13 : 112,168.09 = 45,472.35 : x
  2. Step 2: Convert to fraction form
    81,283.13/112,168.09 = 45,472.35/x
  3. Step 3: Cross multiply
    81,283.13x = 112,168.09 × 45,472.35
  4. Step 4: Simplify right side
    81,283.13x = 5,100,547,124.78
  5. Step 5: Solve for x
    x = 5,100,547,124.78/81,283.13
  6. Step 6: Final answer
    x = 62,750.38

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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.