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Finding the Fourth Proportional to 86,697.61, 130,050.16 and 29,810.70

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Solution

The fourth proportional to 86,697.61, 130,050.16 and 29,810.70 is: 44,717.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,697.61 : 130,050.16 = 29,810.70 : x
  2. Step 2: Convert to fraction form
    86,697.61/130,050.16 = 29,810.70/x
  3. Step 3: Cross multiply
    86,697.61x = 130,050.16 × 29,810.70
  4. Step 4: Simplify right side
    86,697.61x = 3,876,886,230.19
  5. Step 5: Solve for x
    x = 3,876,886,230.19/86,697.61
  6. Step 6: Final answer
    x = 44,717.34

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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.