Home / 51,218.48-70,669.32-28,862.48

Finding the Fourth Proportional to 51,218.48, 70,669.32 and 28,862.48

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Solution

The fourth proportional to 51,218.48, 70,669.32 and 28,862.48 is: 39,823.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,218.48 : 70,669.32 = 28,862.48 : x
  2. Step 2: Convert to fraction form
    51,218.48/70,669.32 = 28,862.48/x
  3. Step 3: Cross multiply
    51,218.48x = 70,669.32 × 28,862.48
  4. Step 4: Simplify right side
    51,218.48x = 2,039,691,835.11
  5. Step 5: Solve for x
    x = 2,039,691,835.11/51,218.48
  6. Step 6: Final answer
    x = 39,823.36

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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.