Home / 71,389.10-98,358.36-47,147.02

Finding the Fourth Proportional to 71,389.10, 98,358.36 and 47,147.02

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Solution

The fourth proportional to 71,389.10, 98,358.36 and 47,147.02 is: 64,958.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,389.10 : 98,358.36 = 47,147.02 : x
  2. Step 2: Convert to fraction form
    71,389.10/98,358.36 = 47,147.02/x
  3. Step 3: Cross multiply
    71,389.10x = 98,358.36 × 47,147.02
  4. Step 4: Simplify right side
    71,389.10x = 4,637,303,566.09
  5. Step 5: Solve for x
    x = 4,637,303,566.09/71,389.10
  6. Step 6: Final answer
    x = 64,958.15

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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.