Home / 86,708.22-129,937.50-51,085.50

Finding the Fourth Proportional to 86,708.22, 129,937.50 and 51,085.50

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Solution

The fourth proportional to 86,708.22, 129,937.50 and 51,085.50 is: 76,554.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,708.22 : 129,937.50 = 51,085.50 : x
  2. Step 2: Convert to fraction form
    86,708.22/129,937.50 = 51,085.50/x
  3. Step 3: Cross multiply
    86,708.22x = 129,937.50 × 51,085.50
  4. Step 4: Simplify right side
    86,708.22x = 6,637,922,156.25
  5. Step 5: Solve for x
    x = 6,637,922,156.25/86,708.22
  6. Step 6: Final answer
    x = 76,554.70

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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.