Home / 78,026.85-107,647.92-51,184.26

Finding the Fourth Proportional to 78,026.85, 107,647.92 and 51,184.26

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Solution

The fourth proportional to 78,026.85, 107,647.92 and 51,184.26 is: 70,615.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,026.85 : 107,647.92 = 51,184.26 : x
  2. Step 2: Convert to fraction form
    78,026.85/107,647.92 = 51,184.26/x
  3. Step 3: Cross multiply
    78,026.85x = 107,647.92 × 51,184.26
  4. Step 4: Simplify right side
    78,026.85x = 5,509,879,125.74
  5. Step 5: Solve for x
    x = 5,509,879,125.74/78,026.85
  6. Step 6: Final answer
    x = 70,615.17

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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.