Home / 74,376.18-102,609.36-47,511.72

Finding the Fourth Proportional to 74,376.18, 102,609.36 and 47,511.72

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Solution

The fourth proportional to 74,376.18, 102,609.36 and 47,511.72 is: 65,547.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,376.18 : 102,609.36 = 47,511.72 : x
  2. Step 2: Convert to fraction form
    74,376.18/102,609.36 = 47,511.72/x
  3. Step 3: Cross multiply
    74,376.18x = 102,609.36 × 47,511.72
  4. Step 4: Simplify right side
    74,376.18x = 4,875,147,181.70
  5. Step 5: Solve for x
    x = 4,875,147,181.70/74,376.18
  6. Step 6: Final answer
    x = 65,547.16

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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.