Home / 50,139.81-75,159.09-31,433.00

Finding the Fourth Proportional to 50,139.81, 75,159.09 and 31,433.00

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Solution

The fourth proportional to 50,139.81, 75,159.09 and 31,433.00 is: 47,117.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,139.81 : 75,159.09 = 31,433.00 : x
  2. Step 2: Convert to fraction form
    50,139.81/75,159.09 = 31,433.00/x
  3. Step 3: Cross multiply
    50,139.81x = 75,159.09 × 31,433.00
  4. Step 4: Simplify right side
    50,139.81x = 2,362,475,300.17
  5. Step 5: Solve for x
    x = 2,362,475,300.17/50,139.81
  6. Step 6: Final answer
    x = 47,117.76

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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.