Home / 78,666.11-117,955.42-26,046.89

Finding the Fourth Proportional to 78,666.11, 117,955.42 and 26,046.89

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Solution

The fourth proportional to 78,666.11, 117,955.42 and 26,046.89 is: 39,055.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,666.11 : 117,955.42 = 26,046.89 : x
  2. Step 2: Convert to fraction form
    78,666.11/117,955.42 = 26,046.89/x
  3. Step 3: Cross multiply
    78,666.11x = 117,955.42 × 26,046.89
  4. Step 4: Simplify right side
    78,666.11x = 3,072,371,129.63
  5. Step 5: Solve for x
    x = 3,072,371,129.63/78,666.11
  6. Step 6: Final answer
    x = 39,055.84

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1.5x scale

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.