Home / 56,283.15-77,667.48-30,784.77

Finding the Fourth Proportional to 56,283.15, 77,667.48 and 30,784.77

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Solution

The fourth proportional to 56,283.15, 77,667.48 and 30,784.77 is: 42,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,283.15 : 77,667.48 = 30,784.77 : x
  2. Step 2: Convert to fraction form
    56,283.15/77,667.48 = 30,784.77/x
  3. Step 3: Cross multiply
    56,283.15x = 77,667.48 × 30,784.77
  4. Step 4: Simplify right side
    56,283.15x = 2,390,975,508.28
  5. Step 5: Solve for x
    x = 2,390,975,508.28/56,283.15
  6. Step 6: Final answer
    x = 42,481.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.