Home / 64,965.68-97,457.75-19,990.76

Finding the Fourth Proportional to 64,965.68, 97,457.75 and 19,990.76

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Solution

The fourth proportional to 64,965.68, 97,457.75 and 19,990.76 is: 29,988.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,965.68 : 97,457.75 = 19,990.76 : x
  2. Step 2: Convert to fraction form
    64,965.68/97,457.75 = 19,990.76/x
  3. Step 3: Cross multiply
    64,965.68x = 97,457.75 × 19,990.76
  4. Step 4: Simplify right side
    64,965.68x = 1,948,254,390.44
  5. Step 5: Solve for x
    x = 1,948,254,390.44/64,965.68
  6. Step 6: Final answer
    x = 29,988.98

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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.