Home / 76,963.98-106,228.02-45,143.16

Finding the Fourth Proportional to 76,963.98, 106,228.02 and 45,143.16

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Solution

The fourth proportional to 76,963.98, 106,228.02 and 45,143.16 is: 62,307.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,963.98 : 106,228.02 = 45,143.16 : x
  2. Step 2: Convert to fraction form
    76,963.98/106,228.02 = 45,143.16/x
  3. Step 3: Cross multiply
    76,963.98x = 106,228.02 × 45,143.16
  4. Step 4: Simplify right side
    76,963.98x = 4,795,468,503.34
  5. Step 5: Solve for x
    x = 4,795,468,503.34/76,963.98
  6. Step 6: Final answer
    x = 62,307.96

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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.