Home / 65,875.23-98,815.59-19,128.11

Finding the Fourth Proportional to 65,875.23, 98,815.59 and 19,128.11

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Solution

The fourth proportional to 65,875.23, 98,815.59 and 19,128.11 is: 28,692.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,875.23 : 98,815.59 = 19,128.11 : x
  2. Step 2: Convert to fraction form
    65,875.23/98,815.59 = 19,128.11/x
  3. Step 3: Cross multiply
    65,875.23x = 98,815.59 × 19,128.11
  4. Step 4: Simplify right side
    65,875.23x = 1,890,155,475.23
  5. Step 5: Solve for x
    x = 1,890,155,475.23/65,875.23
  6. Step 6: Final answer
    x = 28,692.96

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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.