Home / 51,238.32-76,905.40-31,555.28

Finding the Fourth Proportional to 51,238.32, 76,905.40 and 31,555.28

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Solution

The fourth proportional to 51,238.32, 76,905.40 and 31,555.28 is: 47,362.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,238.32 : 76,905.40 = 31,555.28 : x
  2. Step 2: Convert to fraction form
    51,238.32/76,905.40 = 31,555.28/x
  3. Step 3: Cross multiply
    51,238.32x = 76,905.40 × 31,555.28
  4. Step 4: Simplify right side
    51,238.32x = 2,426,771,430.51
  5. Step 5: Solve for x
    x = 2,426,771,430.51/51,238.32
  6. Step 6: Final answer
    x = 47,362.43

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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.