Home / 58,119.15-87,186.57-18,688.35

Finding the Fourth Proportional to 58,119.15, 87,186.57 and 18,688.35

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Solution

The fourth proportional to 58,119.15, 87,186.57 and 18,688.35 is: 28,035.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,119.15 : 87,186.57 = 18,688.35 : x
  2. Step 2: Convert to fraction form
    58,119.15/87,186.57 = 18,688.35/x
  3. Step 3: Cross multiply
    58,119.15x = 87,186.57 × 18,688.35
  4. Step 4: Simplify right side
    58,119.15x = 1,629,373,135.46
  5. Step 5: Solve for x
    x = 1,629,373,135.46/58,119.15
  6. Step 6: Final answer
    x = 28,035.05

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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.