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Finding the Fourth Proportional to 84,038.85, 115,972.07 and 45,798.71

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Solution

The fourth proportional to 84,038.85, 115,972.07 and 45,798.71 is: 63,201.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,038.85 : 115,972.07 = 45,798.71 : x
  2. Step 2: Convert to fraction form
    84,038.85/115,972.07 = 45,798.71/x
  3. Step 3: Cross multiply
    84,038.85x = 115,972.07 × 45,798.71
  4. Step 4: Simplify right side
    84,038.85x = 5,311,370,393.18
  5. Step 5: Solve for x
    x = 5,311,370,393.18/84,038.85
  6. Step 6: Final answer
    x = 63,201.37

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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.