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Finding the Fourth Proportional to 63,385.58, 87,404.08 and 53,423.79

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Solution

The fourth proportional to 63,385.58, 87,404.08 and 53,423.79 is: 73,667.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,385.58 : 87,404.08 = 53,423.79 : x
  2. Step 2: Convert to fraction form
    63,385.58/87,404.08 = 53,423.79/x
  3. Step 3: Cross multiply
    63,385.58x = 87,404.08 × 53,423.79
  4. Step 4: Simplify right side
    63,385.58x = 4,669,457,215.06
  5. Step 5: Solve for x
    x = 4,669,457,215.06/63,385.58
  6. Step 6: Final answer
    x = 73,667.50

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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.