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Finding the Fourth Proportional to 64,511.40, 89,028.18 and 37,649.64

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Solution

The fourth proportional to 64,511.40, 89,028.18 and 37,649.64 is: 51,957.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,511.40 : 89,028.18 = 37,649.64 : x
  2. Step 2: Convert to fraction form
    64,511.40/89,028.18 = 37,649.64/x
  3. Step 3: Cross multiply
    64,511.40x = 89,028.18 × 37,649.64
  4. Step 4: Simplify right side
    64,511.40x = 3,351,878,926.86
  5. Step 5: Solve for x
    x = 3,351,878,926.86/64,511.40
  6. Step 6: Final answer
    x = 51,957.93

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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.