Home / 52,030.76-78,046.34-12,587.81

Finding the Fourth Proportional to 52,030.76, 78,046.34 and 12,587.81

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Solution

The fourth proportional to 52,030.76, 78,046.34 and 12,587.81 is: 18,881.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,030.76 : 78,046.34 = 12,587.81 : x
  2. Step 2: Convert to fraction form
    52,030.76/78,046.34 = 12,587.81/x
  3. Step 3: Cross multiply
    52,030.76x = 78,046.34 × 12,587.81
  4. Step 4: Simplify right side
    52,030.76x = 982,432,045.94
  5. Step 5: Solve for x
    x = 982,432,045.94/52,030.76
  6. Step 6: Final answer
    x = 18,881.76

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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.