Home / 97,989.48-135,226.02-57,705

Finding the Fourth Proportional to 97,989.48, 135,226.02 and 57,705

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Solution

The fourth proportional to 97,989.48, 135,226.02 and 57,705 is: 79,633.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,989.48 : 135,226.02 = 57,705 : x
  2. Step 2: Convert to fraction form
    97,989.48/135,226.02 = 57,705/x
  3. Step 3: Cross multiply
    97,989.48x = 135,226.02 × 57,705
  4. Step 4: Simplify right side
    97,989.48x = 7,803,217,484.10
  5. Step 5: Solve for x
    x = 7,803,217,484.10/97,989.48
  6. Step 6: Final answer
    x = 79,633.22

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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.