Home / 90,450.36-124,883.36-56,510.56

Finding the Fourth Proportional to 90,450.36, 124,883.36 and 56,510.56

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Solution

The fourth proportional to 90,450.36, 124,883.36 and 56,510.56 is: 78,023.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,450.36 : 124,883.36 = 56,510.56 : x
  2. Step 2: Convert to fraction form
    90,450.36/124,883.36 = 56,510.56/x
  3. Step 3: Cross multiply
    90,450.36x = 124,883.36 × 56,510.56
  4. Step 4: Simplify right side
    90,450.36x = 7,057,228,608.28
  5. Step 5: Solve for x
    x = 7,057,228,608.28/90,450.36
  6. Step 6: Final answer
    x = 78,023.22

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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.