Home / 78,254.46-117,368.05-36,130.95

Finding the Fourth Proportional to 78,254.46, 117,368.05 and 36,130.95

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Solution

The fourth proportional to 78,254.46, 117,368.05 and 36,130.95 is: 54,190.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,254.46 : 117,368.05 = 36,130.95 : x
  2. Step 2: Convert to fraction form
    78,254.46/117,368.05 = 36,130.95/x
  3. Step 3: Cross multiply
    78,254.46x = 117,368.05 × 36,130.95
  4. Step 4: Simplify right side
    78,254.46x = 4,240,618,378.65
  5. Step 5: Solve for x
    x = 4,240,618,378.65/78,254.46
  6. Step 6: Final answer
    x = 54,190.12

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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.