Home / 53,280.86-79,921.26-15,840.77

Finding the Fourth Proportional to 53,280.86, 79,921.26 and 15,840.77

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Solution

The fourth proportional to 53,280.86, 79,921.26 and 15,840.77 is: 23,761.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,280.86 : 79,921.26 = 15,840.77 : x
  2. Step 2: Convert to fraction form
    53,280.86/79,921.26 = 15,840.77/x
  3. Step 3: Cross multiply
    53,280.86x = 79,921.26 × 15,840.77
  4. Step 4: Simplify right side
    53,280.86x = 1,266,013,898.16
  5. Step 5: Solve for x
    x = 1,266,013,898.16/53,280.86
  6. Step 6: Final answer
    x = 23,761.14

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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.