Home / 86,646.07-129,981.44-26,679.58

Finding the Fourth Proportional to 86,646.07, 129,981.44 and 26,679.58

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Solution

The fourth proportional to 86,646.07, 129,981.44 and 26,679.58 is: 40,023.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,646.07 : 129,981.44 = 26,679.58 : x
  2. Step 2: Convert to fraction form
    86,646.07/129,981.44 = 26,679.58/x
  3. Step 3: Cross multiply
    86,646.07x = 129,981.44 × 26,679.58
  4. Step 4: Simplify right side
    86,646.07x = 3,467,849,968.74
  5. Step 5: Solve for x
    x = 3,467,849,968.74/86,646.07
  6. Step 6: Final answer
    x = 40,023.16

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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.