Home / 105,333.72-145,361.05-57,587.07

Finding the Fourth Proportional to 105,333.72, 145,361.05 and 57,587.07

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Solution

The fourth proportional to 105,333.72, 145,361.05 and 57,587.07 is: 79,470.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,333.72 : 145,361.05 = 57,587.07 : x
  2. Step 2: Convert to fraction form
    105,333.72/145,361.05 = 57,587.07/x
  3. Step 3: Cross multiply
    105,333.72x = 145,361.05 × 57,587.07
  4. Step 4: Simplify right side
    105,333.72x = 8,370,916,961.62
  5. Step 5: Solve for x
    x = 8,370,916,961.62/105,333.72
  6. Step 6: Final answer
    x = 79,470.44

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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.