Home / 47,854.72-66,008.40-30,880.48

Finding the Fourth Proportional to 47,854.72, 66,008.40 and 30,880.48

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Solution

The fourth proportional to 47,854.72, 66,008.40 and 30,880.48 is: 42,594.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,854.72 : 66,008.40 = 30,880.48 : x
  2. Step 2: Convert to fraction form
    47,854.72/66,008.40 = 30,880.48/x
  3. Step 3: Cross multiply
    47,854.72x = 66,008.40 × 30,880.48
  4. Step 4: Simplify right side
    47,854.72x = 2,038,371,076.03
  5. Step 5: Solve for x
    x = 2,038,371,076.03/47,854.72
  6. Step 6: Final answer
    x = 42,594.98

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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.