Home / 64,875.83-97,317.57-18,128.70

Finding the Fourth Proportional to 64,875.83, 97,317.57 and 18,128.70

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Solution

The fourth proportional to 64,875.83, 97,317.57 and 18,128.70 is: 27,194.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,875.83 : 97,317.57 = 18,128.70 : x
  2. Step 2: Convert to fraction form
    64,875.83/97,317.57 = 18,128.70/x
  3. Step 3: Cross multiply
    64,875.83x = 97,317.57 × 18,128.70
  4. Step 4: Simplify right side
    64,875.83x = 1,764,241,031.26
  5. Step 5: Solve for x
    x = 1,764,241,031.26/64,875.83
  6. Step 6: Final answer
    x = 27,194.12

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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.