Home / 76,437.48-105,477.94-42,897

Finding the Fourth Proportional to 76,437.48, 105,477.94 and 42,897

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Solution

The fourth proportional to 76,437.48, 105,477.94 and 42,897 is: 59,194.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,437.48 : 105,477.94 = 42,897 : x
  2. Step 2: Convert to fraction form
    76,437.48/105,477.94 = 42,897/x
  3. Step 3: Cross multiply
    76,437.48x = 105,477.94 × 42,897
  4. Step 4: Simplify right side
    76,437.48x = 4,524,687,192.18
  5. Step 5: Solve for x
    x = 4,524,687,192.18/76,437.48
  6. Step 6: Final answer
    x = 59,194.61

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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.