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Finding the Fourth Proportional to 95,042.63, 130,975.04 and 72,345.67

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Solution

The fourth proportional to 95,042.63, 130,975.04 and 72,345.67 is: 99,697.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,042.63 : 130,975.04 = 72,345.67 : x
  2. Step 2: Convert to fraction form
    95,042.63/130,975.04 = 72,345.67/x
  3. Step 3: Cross multiply
    95,042.63x = 130,975.04 × 72,345.67
  4. Step 4: Simplify right side
    95,042.63x = 9,475,476,875.50
  5. Step 5: Solve for x
    x = 9,475,476,875.50/95,042.63
  6. Step 6: Final answer
    x = 99,697.12

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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.