Home / 53,868.14-80,775.16-31,386.10

Finding the Fourth Proportional to 53,868.14, 80,775.16 and 31,386.10

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Solution

The fourth proportional to 53,868.14, 80,775.16 and 31,386.10 is: 47,063.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,868.14 : 80,775.16 = 31,386.10 : x
  2. Step 2: Convert to fraction form
    53,868.14/80,775.16 = 31,386.10/x
  3. Step 3: Cross multiply
    53,868.14x = 80,775.16 × 31,386.10
  4. Step 4: Simplify right side
    53,868.14x = 2,535,217,249.28
  5. Step 5: Solve for x
    x = 2,535,217,249.28/53,868.14
  6. Step 6: Final answer
    x = 47,063.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.