Home / 84,001.10-126,051.26-30,688.34

Finding the Fourth Proportional to 84,001.10, 126,051.26 and 30,688.34

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Solution

The fourth proportional to 84,001.10, 126,051.26 and 30,688.34 is: 46,050.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,001.10 : 126,051.26 = 30,688.34 : x
  2. Step 2: Convert to fraction form
    84,001.10/126,051.26 = 30,688.34/x
  3. Step 3: Cross multiply
    84,001.10x = 126,051.26 × 30,688.34
  4. Step 4: Simplify right side
    84,001.10x = 3,868,303,140.61
  5. Step 5: Solve for x
    x = 3,868,303,140.61/84,001.10
  6. Step 6: Final answer
    x = 46,050.63

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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.