Home / 84,971.72-127,430.29-28,032.83

Finding the Fourth Proportional to 84,971.72, 127,430.29 and 28,032.83

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Solution

The fourth proportional to 84,971.72, 127,430.29 and 28,032.83 is: 42,040.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,971.72 : 127,430.29 = 28,032.83 : x
  2. Step 2: Convert to fraction form
    84,971.72/127,430.29 = 28,032.83/x
  3. Step 3: Cross multiply
    84,971.72x = 127,430.29 × 28,032.83
  4. Step 4: Simplify right side
    84,971.72x = 3,572,231,656.42
  5. Step 5: Solve for x
    x = 3,572,231,656.42/84,971.72
  6. Step 6: Final answer
    x = 42,040.24

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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.