Home / 105,092.51-145,032.02-59,778.47

Finding the Fourth Proportional to 105,092.51, 145,032.02 and 59,778.47

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Solution

The fourth proportional to 105,092.51, 145,032.02 and 59,778.47 is: 82,496.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,092.51 : 145,032.02 = 59,778.47 : x
  2. Step 2: Convert to fraction form
    105,092.51/145,032.02 = 59,778.47/x
  3. Step 3: Cross multiply
    105,092.51x = 145,032.02 × 59,778.47
  4. Step 4: Simplify right side
    105,092.51x = 8,669,791,232.56
  5. Step 5: Solve for x
    x = 8,669,791,232.56/105,092.51
  6. Step 6: Final answer
    x = 82,496.76

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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.