Home / 86,777.85-130,018.18-47,362.62

Finding the Fourth Proportional to 86,777.85, 130,018.18 and 47,362.62

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Solution

The fourth proportional to 86,777.85, 130,018.18 and 47,362.62 is: 70,962.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,777.85 : 130,018.18 = 47,362.62 : x
  2. Step 2: Convert to fraction form
    86,777.85/130,018.18 = 47,362.62/x
  3. Step 3: Cross multiply
    86,777.85x = 130,018.18 × 47,362.62
  4. Step 4: Simplify right side
    86,777.85x = 6,158,001,652.43
  5. Step 5: Solve for x
    x = 6,158,001,652.43/86,777.85
  6. Step 6: Final answer
    x = 70,962.83

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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.