Home / 86,131.35-118,859.04-47,888.92

Finding the Fourth Proportional to 86,131.35, 118,859.04 and 47,888.92

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Solution

The fourth proportional to 86,131.35, 118,859.04 and 47,888.92 is: 66,085.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,131.35 : 118,859.04 = 47,888.92 : x
  2. Step 2: Convert to fraction form
    86,131.35/118,859.04 = 47,888.92/x
  3. Step 3: Cross multiply
    86,131.35x = 118,859.04 × 47,888.92
  4. Step 4: Simplify right side
    86,131.35x = 5,692,031,057.84
  5. Step 5: Solve for x
    x = 5,692,031,057.84/86,131.35
  6. Step 6: Final answer
    x = 66,085.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.