Home / 86,802.08-130,156.80-41,161.76

Finding the Fourth Proportional to 86,802.08, 130,156.80 and 41,161.76

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Solution

The fourth proportional to 86,802.08, 130,156.80 and 41,161.76 is: 61,720.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,802.08 : 130,156.80 = 41,161.76 : x
  2. Step 2: Convert to fraction form
    86,802.08/130,156.80 = 41,161.76/x
  3. Step 3: Cross multiply
    86,802.08x = 130,156.80 × 41,161.76
  4. Step 4: Simplify right side
    86,802.08x = 5,357,482,963.97
  5. Step 5: Solve for x
    x = 5,357,482,963.97/86,802.08
  6. Step 6: Final answer
    x = 61,720.67

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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.