Home / 79,089.12-118,610.40-26,486.40

Finding the Fourth Proportional to 79,089.12, 118,610.40 and 26,486.40

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Solution

The fourth proportional to 79,089.12, 118,610.40 and 26,486.40 is: 39,721.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,089.12 : 118,610.40 = 26,486.40 : x
  2. Step 2: Convert to fraction form
    79,089.12/118,610.40 = 26,486.40/x
  3. Step 3: Cross multiply
    79,089.12x = 118,610.40 × 26,486.40
  4. Step 4: Simplify right side
    79,089.12x = 3,141,562,498.56
  5. Step 5: Solve for x
    x = 3,141,562,498.56/79,089.12
  6. Step 6: Final answer
    x = 39,721.80

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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.