Home / 79,020.91-118,518.13-26,430.22

Finding the Fourth Proportional to 79,020.91, 118,518.13 and 26,430.22

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Solution

The fourth proportional to 79,020.91, 118,518.13 and 26,430.22 is: 39,640.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,020.91 : 118,518.13 = 26,430.22 : x
  2. Step 2: Convert to fraction form
    79,020.91/118,518.13 = 26,430.22/x
  3. Step 3: Cross multiply
    79,020.91x = 118,518.13 × 26,430.22
  4. Step 4: Simplify right side
    79,020.91x = 3,132,460,249.89
  5. Step 5: Solve for x
    x = 3,132,460,249.89/79,020.91
  6. Step 6: Final answer
    x = 39,640.90

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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.