Home / 66,778.02-92,216.21-42,946.20

Finding the Fourth Proportional to 66,778.02, 92,216.21 and 42,946.20

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Solution

The fourth proportional to 66,778.02, 92,216.21 and 42,946.20 is: 59,305.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,778.02 : 92,216.21 = 42,946.20 : x
  2. Step 2: Convert to fraction form
    66,778.02/92,216.21 = 42,946.20/x
  3. Step 3: Cross multiply
    66,778.02x = 92,216.21 × 42,946.20
  4. Step 4: Simplify right side
    66,778.02x = 3,960,335,583.17
  5. Step 5: Solve for x
    x = 3,960,335,583.17/66,778.02
  6. Step 6: Final answer
    x = 59,305.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.