Home / 67,280.02-100,938.40-19,897.45

Finding the Fourth Proportional to 67,280.02, 100,938.40 and 19,897.45

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Solution

The fourth proportional to 67,280.02, 100,938.40 and 19,897.45 is: 29,851.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,280.02 : 100,938.40 = 19,897.45 : x
  2. Step 2: Convert to fraction form
    67,280.02/100,938.40 = 19,897.45/x
  3. Step 3: Cross multiply
    67,280.02x = 100,938.40 × 19,897.45
  4. Step 4: Simplify right side
    67,280.02x = 2,008,416,576.91
  5. Step 5: Solve for x
    x = 2,008,416,576.91/67,280.02
  6. Step 6: Final answer
    x = 29,851.61

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1.5x scale

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.