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Finding the Fourth Proportional to 61,040.70, 91,451.70 and 52,292.70

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Solution

The fourth proportional to 61,040.70, 91,451.70 and 52,292.70 is: 78,345.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,040.70 : 91,451.70 = 52,292.70 : x
  2. Step 2: Convert to fraction form
    61,040.70/91,451.70 = 52,292.70/x
  3. Step 3: Cross multiply
    61,040.70x = 91,451.70 × 52,292.70
  4. Step 4: Simplify right side
    61,040.70x = 4,782,256,312.59
  5. Step 5: Solve for x
    x = 4,782,256,312.59/61,040.70
  6. Step 6: Final answer
    x = 78,345.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.