Home / 56,716.40-84,988.20-47,903.60

Finding the Fourth Proportional to 56,716.40, 84,988.20 and 47,903.60

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Solution

The fourth proportional to 56,716.40, 84,988.20 and 47,903.60 is: 71,782.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,716.40 : 84,988.20 = 47,903.60 : x
  2. Step 2: Convert to fraction form
    56,716.40/84,988.20 = 47,903.60/x
  3. Step 3: Cross multiply
    56,716.40x = 84,988.20 × 47,903.60
  4. Step 4: Simplify right side
    56,716.40x = 4,071,240,737.52
  5. Step 5: Solve for x
    x = 4,071,240,737.52/56,716.40
  6. Step 6: Final answer
    x = 71,782.43

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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.