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Finding the Fourth Proportional to 64,712.76, 89,307.24 and 36,420.26

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Solution

The fourth proportional to 64,712.76, 89,307.24 and 36,420.26 is: 50,262.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,712.76 : 89,307.24 = 36,420.26 : x
  2. Step 2: Convert to fraction form
    64,712.76/89,307.24 = 36,420.26/x
  3. Step 3: Cross multiply
    64,712.76x = 89,307.24 × 36,420.26
  4. Step 4: Simplify right side
    64,712.76x = 3,252,592,900.68
  5. Step 5: Solve for x
    x = 3,252,592,900.68/64,712.76
  6. Step 6: Final answer
    x = 50,262.00

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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.