Home / 86,749.12-119,678.34-58,463.92

Finding the Fourth Proportional to 86,749.12, 119,678.34 and 58,463.92

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Solution

The fourth proportional to 86,749.12, 119,678.34 and 58,463.92 is: 80,656.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,749.12 : 119,678.34 = 58,463.92 : x
  2. Step 2: Convert to fraction form
    86,749.12/119,678.34 = 58,463.92/x
  3. Step 3: Cross multiply
    86,749.12x = 119,678.34 × 58,463.92
  4. Step 4: Simplify right side
    86,749.12x = 6,996,864,895.49
  5. Step 5: Solve for x
    x = 6,996,864,895.49/86,749.12
  6. Step 6: Final answer
    x = 80,656.32

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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.