Home / 51,347.04-77,039.64-31,397.46

Finding the Fourth Proportional to 51,347.04, 77,039.64 and 31,397.46

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Solution

The fourth proportional to 51,347.04, 77,039.64 and 31,397.46 is: 47,107.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,347.04 : 77,039.64 = 31,397.46 : x
  2. Step 2: Convert to fraction form
    51,347.04/77,039.64 = 31,397.46/x
  3. Step 3: Cross multiply
    51,347.04x = 77,039.64 × 31,397.46
  4. Step 4: Simplify right side
    51,347.04x = 2,418,849,015.31
  5. Step 5: Solve for x
    x = 2,418,849,015.31/51,347.04
  6. Step 6: Final answer
    x = 47,107.86

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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.