Home / 48,428.64-72,219.21-47,985.78

Finding the Fourth Proportional to 48,428.64, 72,219.21 and 47,985.78

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Solution

The fourth proportional to 48,428.64, 72,219.21 and 47,985.78 is: 71,558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,428.64 : 72,219.21 = 47,985.78 : x
  2. Step 2: Convert to fraction form
    48,428.64/72,219.21 = 47,985.78/x
  3. Step 3: Cross multiply
    48,428.64x = 72,219.21 × 47,985.78
  4. Step 4: Simplify right side
    48,428.64x = 3,465,495,122.83
  5. Step 5: Solve for x
    x = 3,465,495,122.83/48,428.64
  6. Step 6: Final answer
    x = 71,558.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.