Home / 98,428.48-147,666.23-31,868.67

Finding the Fourth Proportional to 98,428.48, 147,666.23 and 31,868.67

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Solution

The fourth proportional to 98,428.48, 147,666.23 and 31,868.67 is: 47,810.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,428.48 : 147,666.23 = 31,868.67 : x
  2. Step 2: Convert to fraction form
    98,428.48/147,666.23 = 31,868.67/x
  3. Step 3: Cross multiply
    98,428.48x = 147,666.23 × 31,868.67
  4. Step 4: Simplify right side
    98,428.48x = 4,705,926,867.93
  5. Step 5: Solve for x
    x = 4,705,926,867.93/98,428.48
  6. Step 6: Final answer
    x = 47,810.62

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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.