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Finding the Fourth Proportional to 86,475, 119,339.55 and 48,749.28

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Solution

The fourth proportional to 86,475, 119,339.55 and 48,749.28 is: 67,276.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,475 : 119,339.55 = 48,749.28 : x
  2. Step 2: Convert to fraction form
    86,475/119,339.55 = 48,749.28/x
  3. Step 3: Cross multiply
    86,475x = 119,339.55 × 48,749.28
  4. Step 4: Simplify right side
    86,475x = 5,817,717,138.02
  5. Step 5: Solve for x
    x = 5,817,717,138.02/86,475
  6. Step 6: Final answer
    x = 67,276.29

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.