Home / 58,445.15-87,677.78-21,009.11

Finding the Fourth Proportional to 58,445.15, 87,677.78 and 21,009.11

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Solution

The fourth proportional to 58,445.15, 87,677.78 and 21,009.11 is: 31,517.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,445.15 : 87,677.78 = 21,009.11 : x
  2. Step 2: Convert to fraction form
    58,445.15/87,677.78 = 21,009.11/x
  3. Step 3: Cross multiply
    58,445.15x = 87,677.78 × 21,009.11
  4. Step 4: Simplify right side
    58,445.15x = 1,842,031,581.14
  5. Step 5: Solve for x
    x = 1,842,031,581.14/58,445.15
  6. Step 6: Final answer
    x = 31,517.27

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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.