Home / 77,875.70-116,842.35-31,162.10

Finding the Fourth Proportional to 77,875.70, 116,842.35 and 31,162.10

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Solution

The fourth proportional to 77,875.70, 116,842.35 and 31,162.10 is: 46,754.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,875.70 : 116,842.35 = 31,162.10 : x
  2. Step 2: Convert to fraction form
    77,875.70/116,842.35 = 31,162.10/x
  3. Step 3: Cross multiply
    77,875.70x = 116,842.35 × 31,162.10
  4. Step 4: Simplify right side
    77,875.70x = 3,641,052,994.94
  5. Step 5: Solve for x
    x = 3,641,052,994.94/77,875.70
  6. Step 6: Final answer
    x = 46,754.67

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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.