Home / 74,111.48-111,133.68-31,971.68

Finding the Fourth Proportional to 74,111.48, 111,133.68 and 31,971.68

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Solution

The fourth proportional to 74,111.48, 111,133.68 and 31,971.68 is: 47,943.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,111.48 : 111,133.68 = 31,971.68 : x
  2. Step 2: Convert to fraction form
    74,111.48/111,133.68 = 31,971.68/x
  3. Step 3: Cross multiply
    74,111.48x = 111,133.68 × 31,971.68
  4. Step 4: Simplify right side
    74,111.48x = 3,553,130,454.18
  5. Step 5: Solve for x
    x = 3,553,130,454.18/74,111.48
  6. Step 6: Final answer
    x = 47,943.05

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1.5x scale

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.