Home / 78,026.91-107,676.36-42,216.13

Finding the Fourth Proportional to 78,026.91, 107,676.36 and 42,216.13

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Solution

The fourth proportional to 78,026.91, 107,676.36 and 42,216.13 is: 58,257.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,026.91 : 107,676.36 = 42,216.13 : x
  2. Step 2: Convert to fraction form
    78,026.91/107,676.36 = 42,216.13/x
  3. Step 3: Cross multiply
    78,026.91x = 107,676.36 × 42,216.13
  4. Step 4: Simplify right side
    78,026.91x = 4,545,679,211.69
  5. Step 5: Solve for x
    x = 4,545,679,211.69/78,026.91
  6. Step 6: Final answer
    x = 58,257.84

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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.