Home / 86,721.23-130,085.65-29,834.33

Finding the Fourth Proportional to 86,721.23, 130,085.65 and 29,834.33

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Solution

The fourth proportional to 86,721.23, 130,085.65 and 29,834.33 is: 44,752.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,721.23 : 130,085.65 = 29,834.33 : x
  2. Step 2: Convert to fraction form
    86,721.23/130,085.65 = 29,834.33/x
  3. Step 3: Cross multiply
    86,721.23x = 130,085.65 × 29,834.33
  4. Step 4: Simplify right side
    86,721.23x = 3,881,017,429.41
  5. Step 5: Solve for x
    x = 3,881,017,429.41/86,721.23
  6. Step 6: Final answer
    x = 44,752.79

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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.