Home / 105,484.91-145,569.36-57,741.29

Finding the Fourth Proportional to 105,484.91, 145,569.36 and 57,741.29

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Solution

The fourth proportional to 105,484.91, 145,569.36 and 57,741.29 is: 79,683.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,484.91 : 145,569.36 = 57,741.29 : x
  2. Step 2: Convert to fraction form
    105,484.91/145,569.36 = 57,741.29/x
  3. Step 3: Cross multiply
    105,484.91x = 145,569.36 × 57,741.29
  4. Step 4: Simplify right side
    105,484.91x = 8,405,362,630.87
  5. Step 5: Solve for x
    x = 8,405,362,630.87/105,484.91
  6. Step 6: Final answer
    x = 79,683.08

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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.