Home / 105,779.40-145,973.01-58,032.33

Finding the Fourth Proportional to 105,779.40, 145,973.01 and 58,032.33

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Solution

The fourth proportional to 105,779.40, 145,973.01 and 58,032.33 is: 80,083.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,779.40 : 145,973.01 = 58,032.33 : x
  2. Step 2: Convert to fraction form
    105,779.40/145,973.01 = 58,032.33/x
  3. Step 3: Cross multiply
    105,779.40x = 145,973.01 × 58,032.33
  4. Step 4: Simplify right side
    105,779.40x = 8,471,153,887.41
  5. Step 5: Solve for x
    x = 8,471,153,887.41/105,779.40
  6. Step 6: Final answer
    x = 80,083.21

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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.