Home / 83,280.02-124,920.09-20,950.50

Finding the Fourth Proportional to 83,280.02, 124,920.09 and 20,950.50

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Solution

The fourth proportional to 83,280.02, 124,920.09 and 20,950.50 is: 31,425.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,280.02 : 124,920.09 = 20,950.50 : x
  2. Step 2: Convert to fraction form
    83,280.02/124,920.09 = 20,950.50/x
  3. Step 3: Cross multiply
    83,280.02x = 124,920.09 × 20,950.50
  4. Step 4: Simplify right side
    83,280.02x = 2,617,138,345.55
  5. Step 5: Solve for x
    x = 2,617,138,345.55/83,280.02
  6. Step 6: Final answer
    x = 31,425.77

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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.