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Finding the Fourth Proportional to 81,703.37, 112,750.71 and 45,893.40

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Solution

The fourth proportional to 81,703.37, 112,750.71 and 45,893.40 is: 63,332.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,703.37 : 112,750.71 = 45,893.40 : x
  2. Step 2: Convert to fraction form
    81,703.37/112,750.71 = 45,893.40/x
  3. Step 3: Cross multiply
    81,703.37x = 112,750.71 × 45,893.40
  4. Step 4: Simplify right side
    81,703.37x = 5,174,513,434.31
  5. Step 5: Solve for x
    x = 5,174,513,434.31/81,703.37
  6. Step 6: Final answer
    x = 63,332.93

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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.