Home / 56,089.71-84,116.35-18,639.72

Finding the Fourth Proportional to 56,089.71, 84,116.35 and 18,639.72

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Solution

The fourth proportional to 56,089.71, 84,116.35 and 18,639.72 is: 27,953.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,089.71 : 84,116.35 = 18,639.72 : x
  2. Step 2: Convert to fraction form
    56,089.71/84,116.35 = 18,639.72/x
  3. Step 3: Cross multiply
    56,089.71x = 84,116.35 × 18,639.72
  4. Step 4: Simplify right side
    56,089.71x = 1,567,905,211.42
  5. Step 5: Solve for x
    x = 1,567,905,211.42/56,089.71
  6. Step 6: Final answer
    x = 27,953.53

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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.