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Finding the Fourth Proportional to 86,703, 130,051.59 and 36,750.97

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Solution

The fourth proportional to 86,703, 130,051.59 and 36,750.97 is: 55,125.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,703 : 130,051.59 = 36,750.97 : x
  2. Step 2: Convert to fraction form
    86,703/130,051.59 = 36,750.97/x
  3. Step 3: Cross multiply
    86,703x = 130,051.59 × 36,750.97
  4. Step 4: Simplify right side
    86,703x = 4,779,522,082.54
  5. Step 5: Solve for x
    x = 4,779,522,082.54/86,703
  6. Step 6: Final answer
    x = 55,125.22

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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.