Home / 81,125.15-121,699.25-24,969.94

Finding the Fourth Proportional to 81,125.15, 121,699.25 and 24,969.94

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Solution

The fourth proportional to 81,125.15, 121,699.25 and 24,969.94 is: 37,458.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,125.15 : 121,699.25 = 24,969.94 : x
  2. Step 2: Convert to fraction form
    81,125.15/121,699.25 = 24,969.94/x
  3. Step 3: Cross multiply
    81,125.15x = 121,699.25 × 24,969.94
  4. Step 4: Simplify right side
    81,125.15x = 3,038,822,501.27
  5. Step 5: Solve for x
    x = 3,038,822,501.27/81,125.15
  6. Step 6: Final answer
    x = 37,458.45

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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.