Home / 53,278.45-79,903.80-15,829.72

Finding the Fourth Proportional to 53,278.45, 79,903.80 and 15,829.72

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Solution

The fourth proportional to 53,278.45, 79,903.80 and 15,829.72 is: 23,740.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,278.45 : 79,903.80 = 15,829.72 : x
  2. Step 2: Convert to fraction form
    53,278.45/79,903.80 = 15,829.72/x
  3. Step 3: Cross multiply
    53,278.45x = 79,903.80 × 15,829.72
  4. Step 4: Simplify right side
    53,278.45x = 1,264,854,780.94
  5. Step 5: Solve for x
    x = 1,264,854,780.94/53,278.45
  6. Step 6: Final answer
    x = 23,740.46

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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.