Home / 102,435.53-153,671.43-31,356.59

Finding the Fourth Proportional to 102,435.53, 153,671.43 and 31,356.59

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Solution

The fourth proportional to 102,435.53, 153,671.43 and 31,356.59 is: 47,040.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,435.53 : 153,671.43 = 31,356.59 : x
  2. Step 2: Convert to fraction form
    102,435.53/153,671.43 = 31,356.59/x
  3. Step 3: Cross multiply
    102,435.53x = 153,671.43 × 31,356.59
  4. Step 4: Simplify right side
    102,435.53x = 4,818,612,025.22
  5. Step 5: Solve for x
    x = 4,818,612,025.22/102,435.53
  6. Step 6: Final answer
    x = 47,040.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.