Home / 90,215.18-124,510.12-51,967.28

Finding the Fourth Proportional to 90,215.18, 124,510.12 and 51,967.28

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Solution

The fourth proportional to 90,215.18, 124,510.12 and 51,967.28 is: 71,722.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,215.18 : 124,510.12 = 51,967.28 : x
  2. Step 2: Convert to fraction form
    90,215.18/124,510.12 = 51,967.28/x
  3. Step 3: Cross multiply
    90,215.18x = 124,510.12 × 51,967.28
  4. Step 4: Simplify right side
    90,215.18x = 6,470,452,450.23
  5. Step 5: Solve for x
    x = 6,470,452,450.23/90,215.18
  6. Step 6: Final answer
    x = 71,722.44

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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.