Home / 105,335.15-145,362.50-57,588.49

Finding the Fourth Proportional to 105,335.15, 145,362.50 and 57,588.49

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Solution

The fourth proportional to 105,335.15, 145,362.50 and 57,588.49 is: 79,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,335.15 : 145,362.50 = 57,588.49 : x
  2. Step 2: Convert to fraction form
    105,335.15/145,362.50 = 57,588.49/x
  3. Step 3: Cross multiply
    105,335.15x = 145,362.50 × 57,588.49
  4. Step 4: Simplify right side
    105,335.15x = 8,371,205,862.87
  5. Step 5: Solve for x
    x = 8,371,205,862.87/105,335.15
  6. Step 6: Final answer
    x = 79,472.10

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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.