Home / 52,030.89-78,046.47-12,587.94

Finding the Fourth Proportional to 52,030.89, 78,046.47 and 12,587.94

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Solution

The fourth proportional to 52,030.89, 78,046.47 and 12,587.94 is: 18,881.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,030.89 : 78,046.47 = 12,587.94 : x
  2. Step 2: Convert to fraction form
    52,030.89/78,046.47 = 12,587.94/x
  3. Step 3: Cross multiply
    52,030.89x = 78,046.47 × 12,587.94
  4. Step 4: Simplify right side
    52,030.89x = 982,444,281.57
  5. Step 5: Solve for x
    x = 982,444,281.57/52,030.89
  6. Step 6: Final answer
    x = 18,881.94

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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.