Home / 49,875.40-74,778.54-18,702.28

Finding the Fourth Proportional to 49,875.40, 74,778.54 and 18,702.28

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Solution

The fourth proportional to 49,875.40, 74,778.54 and 18,702.28 is: 28,040.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,875.40 : 74,778.54 = 18,702.28 : x
  2. Step 2: Convert to fraction form
    49,875.40/74,778.54 = 18,702.28/x
  3. Step 3: Cross multiply
    49,875.40x = 74,778.54 × 18,702.28
  4. Step 4: Simplify right side
    49,875.40x = 1,398,529,193.07
  5. Step 5: Solve for x
    x = 1,398,529,193.07/49,875.40
  6. Step 6: Final answer
    x = 28,040.46

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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.