Home / 77,269.12-106,634.01-45,440.98

Finding the Fourth Proportional to 77,269.12, 106,634.01 and 45,440.98

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Solution

The fourth proportional to 77,269.12, 106,634.01 and 45,440.98 is: 62,710.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,269.12 : 106,634.01 = 45,440.98 : x
  2. Step 2: Convert to fraction form
    77,269.12/106,634.01 = 45,440.98/x
  3. Step 3: Cross multiply
    77,269.12x = 106,634.01 × 45,440.98
  4. Step 4: Simplify right side
    77,269.12x = 4,845,553,915.73
  5. Step 5: Solve for x
    x = 4,845,553,915.73/77,269.12
  6. Step 6: Final answer
    x = 62,710.10

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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.