Home / 58,254.40-87,381.60-18,812.80

Finding the Fourth Proportional to 58,254.40, 87,381.60 and 18,812.80

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Solution

The fourth proportional to 58,254.40, 87,381.60 and 18,812.80 is: 28,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,254.40 : 87,381.60 = 18,812.80 : x
  2. Step 2: Convert to fraction form
    58,254.40/87,381.60 = 18,812.80/x
  3. Step 3: Cross multiply
    58,254.40x = 87,381.60 × 18,812.80
  4. Step 4: Simplify right side
    58,254.40x = 1,643,892,564.48
  5. Step 5: Solve for x
    x = 1,643,892,564.48/58,254.40
  6. Step 6: Final answer
    x = 28,219.20

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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.