Home / 78,025.41-107,674.29-42,214.65

Finding the Fourth Proportional to 78,025.41, 107,674.29 and 42,214.65

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Solution

The fourth proportional to 78,025.41, 107,674.29 and 42,214.65 is: 58,255.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,025.41 : 107,674.29 = 42,214.65 : x
  2. Step 2: Convert to fraction form
    78,025.41/107,674.29 = 42,214.65/x
  3. Step 3: Cross multiply
    78,025.41x = 107,674.29 × 42,214.65
  4. Step 4: Simplify right side
    78,025.41x = 4,545,432,466.35
  5. Step 5: Solve for x
    x = 4,545,432,466.35/78,025.41
  6. Step 6: Final answer
    x = 58,255.80

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1.5x scale

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.