Home / 77,255.02-106,603.12-43,258.78

Finding the Fourth Proportional to 77,255.02, 106,603.12 and 43,258.78

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Solution

The fourth proportional to 77,255.02, 106,603.12 and 43,258.78 is: 59,692.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,255.02 : 106,603.12 = 43,258.78 : x
  2. Step 2: Convert to fraction form
    77,255.02/106,603.12 = 43,258.78/x
  3. Step 3: Cross multiply
    77,255.02x = 106,603.12 × 43,258.78
  4. Step 4: Simplify right side
    77,255.02x = 4,611,520,915.39
  5. Step 5: Solve for x
    x = 4,611,520,915.39/77,255.02
  6. Step 6: Final answer
    x = 59,692.18

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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.