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Finding the Fourth Proportional to 86,162.72, 118,903.52 and 48,437

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Solution

The fourth proportional to 86,162.72, 118,903.52 and 48,437 is: 66,842.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,162.72 : 118,903.52 = 48,437 : x
  2. Step 2: Convert to fraction form
    86,162.72/118,903.52 = 48,437/x
  3. Step 3: Cross multiply
    86,162.72x = 118,903.52 × 48,437
  4. Step 4: Simplify right side
    86,162.72x = 5,759,329,798.24
  5. Step 5: Solve for x
    x = 5,759,329,798.24/86,162.72
  6. Step 6: Final answer
    x = 66,842.48

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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.