Home / 78,437.57-117,653.18-22,277.43

Finding the Fourth Proportional to 78,437.57, 117,653.18 and 22,277.43

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Solution

The fourth proportional to 78,437.57, 117,653.18 and 22,277.43 is: 33,415.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,437.57 : 117,653.18 = 22,277.43 : x
  2. Step 2: Convert to fraction form
    78,437.57/117,653.18 = 22,277.43/x
  3. Step 3: Cross multiply
    78,437.57x = 117,653.18 × 22,277.43
  4. Step 4: Simplify right side
    78,437.57x = 2,621,010,370.34
  5. Step 5: Solve for x
    x = 2,621,010,370.34/78,437.57
  6. Step 6: Final answer
    x = 33,415.24

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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.