Home / 64,983.66-97,478.95-20,613.84

Finding the Fourth Proportional to 64,983.66, 97,478.95 and 20,613.84

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Solution

The fourth proportional to 64,983.66, 97,478.95 and 20,613.84 is: 30,921.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,983.66 : 97,478.95 = 20,613.84 : x
  2. Step 2: Convert to fraction form
    64,983.66/97,478.95 = 20,613.84/x
  3. Step 3: Cross multiply
    64,983.66x = 97,478.95 × 20,613.84
  4. Step 4: Simplify right side
    64,983.66x = 2,009,415,478.67
  5. Step 5: Solve for x
    x = 2,009,415,478.67/64,983.66
  6. Step 6: Final answer
    x = 30,921.86

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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.