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Finding the Fourth Proportional to 64,989.84, 97,487.46 and 20,615.52

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Solution

The fourth proportional to 64,989.84, 97,487.46 and 20,615.52 is: 30,924.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,989.84 : 97,487.46 = 20,615.52 : x
  2. Step 2: Convert to fraction form
    64,989.84/97,487.46 = 20,615.52/x
  3. Step 3: Cross multiply
    64,989.84x = 97,487.46 × 20,615.52
  4. Step 4: Simplify right side
    64,989.84x = 2,009,754,681.38
  5. Step 5: Solve for x
    x = 2,009,754,681.38/64,989.84
  6. Step 6: Final answer
    x = 30,924.14

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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.