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Finding the Fourth Proportional to 64,030.86, 96,057.68 and 21,915.63

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Solution

The fourth proportional to 64,030.86, 96,057.68 and 21,915.63 is: 32,877.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,030.86 : 96,057.68 = 21,915.63 : x
  2. Step 2: Convert to fraction form
    64,030.86/96,057.68 = 21,915.63/x
  3. Step 3: Cross multiply
    64,030.86x = 96,057.68 × 21,915.63
  4. Step 4: Simplify right side
    64,030.86x = 2,105,164,463.96
  5. Step 5: Solve for x
    x = 2,105,164,463.96/64,030.86
  6. Step 6: Final answer
    x = 32,877.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.