Home / 61,320.70-91,430.33-58,979.50

Finding the Fourth Proportional to 61,320.70, 91,430.33 and 58,979.50

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Solution

The fourth proportional to 61,320.70, 91,430.33 and 58,979.50 is: 87,939.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,320.70 : 91,430.33 = 58,979.50 : x
  2. Step 2: Convert to fraction form
    61,320.70/91,430.33 = 58,979.50/x
  3. Step 3: Cross multiply
    61,320.70x = 91,430.33 × 58,979.50
  4. Step 4: Simplify right side
    61,320.70x = 5,392,515,148.24
  5. Step 5: Solve for x
    x = 5,392,515,148.24/61,320.70
  6. Step 6: Final answer
    x = 87,939.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.