Home / 86,917.76-130,274.40-40,071.68

Finding the Fourth Proportional to 86,917.76, 130,274.40 and 40,071.68

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Solution

The fourth proportional to 86,917.76, 130,274.40 and 40,071.68 is: 60,060.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,917.76 : 130,274.40 = 40,071.68 : x
  2. Step 2: Convert to fraction form
    86,917.76/130,274.40 = 40,071.68/x
  3. Step 3: Cross multiply
    86,917.76x = 130,274.40 × 40,071.68
  4. Step 4: Simplify right side
    86,917.76x = 5,220,314,068.99
  5. Step 5: Solve for x
    x = 5,220,314,068.99/86,917.76
  6. Step 6: Final answer
    x = 60,060.38

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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.