Home / 86,688.40-130,033-36,755.96

Finding the Fourth Proportional to 86,688.40, 130,033 and 36,755.96

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Solution

The fourth proportional to 86,688.40, 130,033 and 36,755.96 is: 55,134.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,688.40 : 130,033 = 36,755.96 : x
  2. Step 2: Convert to fraction form
    86,688.40/130,033 = 36,755.96/x
  3. Step 3: Cross multiply
    86,688.40x = 130,033 × 36,755.96
  4. Step 4: Simplify right side
    86,688.40x = 4,779,487,746.68
  5. Step 5: Solve for x
    x = 4,779,487,746.68/86,688.40
  6. Step 6: Final answer
    x = 55,134.11

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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.