Home / 105,372.51-145,412.06-57,625.71

Finding the Fourth Proportional to 105,372.51, 145,412.06 and 57,625.71

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Solution

The fourth proportional to 105,372.51, 145,412.06 and 57,625.71 is: 79,522.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,372.51 : 145,412.06 = 57,625.71 : x
  2. Step 2: Convert to fraction form
    105,372.51/145,412.06 = 57,625.71/x
  3. Step 3: Cross multiply
    105,372.51x = 145,412.06 × 57,625.71
  4. Step 4: Simplify right side
    105,372.51x = 8,379,472,911.93
  5. Step 5: Solve for x
    x = 8,379,472,911.93/105,372.51
  6. Step 6: Final answer
    x = 79,522.38

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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.