Home / 105,371.28-145,413.51-57,623.59

Finding the Fourth Proportional to 105,371.28, 145,413.51 and 57,623.59

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Solution

The fourth proportional to 105,371.28, 145,413.51 and 57,623.59 is: 79,521.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,371.28 : 145,413.51 = 57,623.59 : x
  2. Step 2: Convert to fraction form
    105,371.28/145,413.51 = 57,623.59/x
  3. Step 3: Cross multiply
    105,371.28x = 145,413.51 × 57,623.59
  4. Step 4: Simplify right side
    105,371.28x = 8,379,248,480.70
  5. Step 5: Solve for x
    x = 8,379,248,480.70/105,371.28
  6. Step 6: Final answer
    x = 79,521.18

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1.5x scale

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.