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Finding the Fourth Proportional to 86,705.01, 130,054.59 and 36,752.97

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Solution

The fourth proportional to 86,705.01, 130,054.59 and 36,752.97 is: 55,128.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,705.01 : 130,054.59 = 36,752.97 : x
  2. Step 2: Convert to fraction form
    86,705.01/130,054.59 = 36,752.97/x
  3. Step 3: Cross multiply
    86,705.01x = 130,054.59 × 36,752.97
  4. Step 4: Simplify right side
    86,705.01x = 4,779,892,444.63
  5. Step 5: Solve for x
    x = 4,779,892,444.63/86,705.01
  6. Step 6: Final answer
    x = 55,128.22

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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.