Home / 105,279.24-145,279.22-57,533

Finding the Fourth Proportional to 105,279.24, 145,279.22 and 57,533

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Solution

The fourth proportional to 105,279.24, 145,279.22 and 57,533 is: 79,392.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,279.24 : 145,279.22 = 57,533 : x
  2. Step 2: Convert to fraction form
    105,279.24/145,279.22 = 57,533/x
  3. Step 3: Cross multiply
    105,279.24x = 145,279.22 × 57,533
  4. Step 4: Simplify right side
    105,279.24x = 8,358,349,364.26
  5. Step 5: Solve for x
    x = 8,358,349,364.26/105,279.24
  6. Step 6: Final answer
    x = 79,392.19

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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.