Home / 85,154.04-127,746.55-28,991.27

Finding the Fourth Proportional to 85,154.04, 127,746.55 and 28,991.27

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Solution

The fourth proportional to 85,154.04, 127,746.55 and 28,991.27 is: 43,492.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,154.04 : 127,746.55 = 28,991.27 : x
  2. Step 2: Convert to fraction form
    85,154.04/127,746.55 = 28,991.27/x
  3. Step 3: Cross multiply
    85,154.04x = 127,746.55 × 28,991.27
  4. Step 4: Simplify right side
    85,154.04x = 3,703,534,722.62
  5. Step 5: Solve for x
    x = 3,703,534,722.62/85,154.04
  6. Step 6: Final answer
    x = 43,492.18

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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.