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Finding the Fourth Proportional to 85,736.61, 118,374.27 and 53,520.28

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Solution

The fourth proportional to 85,736.61, 118,374.27 and 53,520.28 is: 73,894.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,736.61 : 118,374.27 = 53,520.28 : x
  2. Step 2: Convert to fraction form
    85,736.61/118,374.27 = 53,520.28/x
  3. Step 3: Cross multiply
    85,736.61x = 118,374.27 × 53,520.28
  4. Step 4: Simplify right side
    85,736.61x = 6,335,423,800.51
  5. Step 5: Solve for x
    x = 6,335,423,800.51/85,736.61
  6. Step 6: Final answer
    x = 73,894.03

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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.