Home / 86,484.85-129,746.07-26,513.55

Finding the Fourth Proportional to 86,484.85, 129,746.07 and 26,513.55

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Solution

The fourth proportional to 86,484.85, 129,746.07 and 26,513.55 is: 39,776.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,484.85 : 129,746.07 = 26,513.55 : x
  2. Step 2: Convert to fraction form
    86,484.85/129,746.07 = 26,513.55/x
  3. Step 3: Cross multiply
    86,484.85x = 129,746.07 × 26,513.55
  4. Step 4: Simplify right side
    86,484.85x = 3,440,029,400.80
  5. Step 5: Solve for x
    x = 3,440,029,400.80/86,484.85
  6. Step 6: Final answer
    x = 39,776.09

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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.