Home / 98,113.20-135,389.56-53,400.24

Finding the Fourth Proportional to 98,113.20, 135,389.56 and 53,400.24

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Solution

The fourth proportional to 98,113.20, 135,389.56 and 53,400.24 is: 73,688.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,113.20 : 135,389.56 = 53,400.24 : x
  2. Step 2: Convert to fraction form
    98,113.20/135,389.56 = 53,400.24/x
  3. Step 3: Cross multiply
    98,113.20x = 135,389.56 × 53,400.24
  4. Step 4: Simplify right side
    98,113.20x = 7,229,834,997.49
  5. Step 5: Solve for x
    x = 7,229,834,997.49/98,113.20
  6. Step 6: Final answer
    x = 73,688.71

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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.