Home / 105,279.11-145,285.55-57,532.48

Finding the Fourth Proportional to 105,279.11, 145,285.55 and 57,532.48

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Solution

The fourth proportional to 105,279.11, 145,285.55 and 57,532.48 is: 79,395.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,279.11 : 145,285.55 = 57,532.48 : x
  2. Step 2: Convert to fraction form
    105,279.11/145,285.55 = 57,532.48/x
  3. Step 3: Cross multiply
    105,279.11x = 145,285.55 × 57,532.48
  4. Step 4: Simplify right side
    105,279.11x = 8,358,637,564.53
  5. Step 5: Solve for x
    x = 8,358,637,564.53/105,279.11
  6. Step 6: Final answer
    x = 79,395.03

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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.