Home / 105,038.48-144,953-57,291.68

Finding the Fourth Proportional to 105,038.48, 144,953 and 57,291.68

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Solution

The fourth proportional to 105,038.48, 144,953 and 57,291.68 is: 79,062.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,038.48 : 144,953 = 57,291.68 : x
  2. Step 2: Convert to fraction form
    105,038.48/144,953 = 57,291.68/x
  3. Step 3: Cross multiply
    105,038.48x = 144,953 × 57,291.68
  4. Step 4: Simplify right side
    105,038.48x = 8,304,600,891.04
  5. Step 5: Solve for x
    x = 8,304,600,891.04/105,038.48
  6. Step 6: Final answer
    x = 79,062.46

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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.