Home / 51,250.40-76,875.60-31,205.60

Finding the Fourth Proportional to 51,250.40, 76,875.60 and 31,205.60

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Solution

The fourth proportional to 51,250.40, 76,875.60 and 31,205.60 is: 46,808.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,250.40 : 76,875.60 = 31,205.60 : x
  2. Step 2: Convert to fraction form
    51,250.40/76,875.60 = 31,205.60/x
  3. Step 3: Cross multiply
    51,250.40x = 76,875.60 × 31,205.60
  4. Step 4: Simplify right side
    51,250.40x = 2,398,949,223.36
  5. Step 5: Solve for x
    x = 2,398,949,223.36/51,250.40
  6. Step 6: Final answer
    x = 46,808.40

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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.