Home / 104,980.45-157,424.50-38,403.31

Finding the Fourth Proportional to 104,980.45, 157,424.50 and 38,403.31

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Solution

The fourth proportional to 104,980.45, 157,424.50 and 38,403.31 is: 57,588.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,980.45 : 157,424.50 = 38,403.31 : x
  2. Step 2: Convert to fraction form
    104,980.45/157,424.50 = 38,403.31/x
  3. Step 3: Cross multiply
    104,980.45x = 157,424.50 × 38,403.31
  4. Step 4: Simplify right side
    104,980.45x = 6,045,621,875.10
  5. Step 5: Solve for x
    x = 6,045,621,875.10/104,980.45
  6. Step 6: Final answer
    x = 57,588.07

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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.