Home / 53,278.86-79,895.04-28,312.86

Finding the Fourth Proportional to 53,278.86, 79,895.04 and 28,312.86

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Solution

The fourth proportional to 53,278.86, 79,895.04 and 28,312.86 is: 42,456.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,278.86 : 79,895.04 = 28,312.86 : x
  2. Step 2: Convert to fraction form
    53,278.86/79,895.04 = 28,312.86/x
  3. Step 3: Cross multiply
    53,278.86x = 79,895.04 × 28,312.86
  4. Step 4: Simplify right side
    53,278.86x = 2,262,057,082.21
  5. Step 5: Solve for x
    x = 2,262,057,082.21/53,278.86
  6. Step 6: Final answer
    x = 42,456.93

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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.