Home / 82,430.40-123,643.28-26,273.87

Finding the Fourth Proportional to 82,430.40, 123,643.28 and 26,273.87

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Solution

The fourth proportional to 82,430.40, 123,643.28 and 26,273.87 is: 39,410.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,430.40 : 123,643.28 = 26,273.87 : x
  2. Step 2: Convert to fraction form
    82,430.40/123,643.28 = 26,273.87/x
  3. Step 3: Cross multiply
    82,430.40x = 123,643.28 × 26,273.87
  4. Step 4: Simplify right side
    82,430.40x = 3,248,588,071.72
  5. Step 5: Solve for x
    x = 3,248,588,071.72/82,430.40
  6. Step 6: Final answer
    x = 39,410.07

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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.