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Finding the Fourth Proportional to 63,602.40, 87,814.08 and 56,866.56

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Solution

The fourth proportional to 63,602.40, 87,814.08 and 56,866.56 is: 78,514.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,602.40 : 87,814.08 = 56,866.56 : x
  2. Step 2: Convert to fraction form
    63,602.40/87,814.08 = 56,866.56/x
  3. Step 3: Cross multiply
    63,602.40x = 87,814.08 × 56,866.56
  4. Step 4: Simplify right side
    63,602.40x = 4,993,684,649.16
  5. Step 5: Solve for x
    x = 4,993,684,649.16/63,602.40
  6. Step 6: Final answer
    x = 78,514.09

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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.