Home / 90,443.76-124,820.28-52,717.20

Finding the Fourth Proportional to 90,443.76, 124,820.28 and 52,717.20

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Solution

The fourth proportional to 90,443.76, 124,820.28 and 52,717.20 is: 72,754.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,443.76 : 124,820.28 = 52,717.20 : x
  2. Step 2: Convert to fraction form
    90,443.76/124,820.28 = 52,717.20/x
  3. Step 3: Cross multiply
    90,443.76x = 124,820.28 × 52,717.20
  4. Step 4: Simplify right side
    90,443.76x = 6,580,175,664.82
  5. Step 5: Solve for x
    x = 6,580,175,664.82/90,443.76
  6. Step 6: Final answer
    x = 72,754.34

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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.