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Finding the Fourth Proportional to 84,038.76, 115,973.52 and 45,798.32

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Solution

The fourth proportional to 84,038.76, 115,973.52 and 45,798.32 is: 63,201.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,038.76 : 115,973.52 = 45,798.32 : x
  2. Step 2: Convert to fraction form
    84,038.76/115,973.52 = 45,798.32/x
  3. Step 3: Cross multiply
    84,038.76x = 115,973.52 × 45,798.32
  4. Step 4: Simplify right side
    84,038.76x = 5,311,392,380.49
  5. Step 5: Solve for x
    x = 5,311,392,380.49/84,038.76
  6. Step 6: Final answer
    x = 63,201.70

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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.