Home / 81,529.02-112,509.96-47,538.90

Finding the Fourth Proportional to 81,529.02, 112,509.96 and 47,538.90

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Solution

The fourth proportional to 81,529.02, 112,509.96 and 47,538.90 is: 65,603.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,529.02 : 112,509.96 = 47,538.90 : x
  2. Step 2: Convert to fraction form
    81,529.02/112,509.96 = 47,538.90/x
  3. Step 3: Cross multiply
    81,529.02x = 112,509.96 × 47,538.90
  4. Step 4: Simplify right side
    81,529.02x = 5,348,599,737.44
  5. Step 5: Solve for x
    x = 5,348,599,737.44/81,529.02
  6. Step 6: Final answer
    x = 65,603.63

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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.