Home / 105,357.81-145,397.27-57,611.16

Finding the Fourth Proportional to 105,357.81, 145,397.27 and 57,611.16

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Solution

The fourth proportional to 105,357.81, 145,397.27 and 57,611.16 is: 79,505.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,357.81 : 145,397.27 = 57,611.16 : x
  2. Step 2: Convert to fraction form
    105,357.81/145,397.27 = 57,611.16/x
  3. Step 3: Cross multiply
    105,357.81x = 145,397.27 × 57,611.16
  4. Step 4: Simplify right side
    105,357.81x = 8,376,505,328.95
  5. Step 5: Solve for x
    x = 8,376,505,328.95/105,357.81
  6. Step 6: Final answer
    x = 79,505.31

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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.