Home / 55,312.48-76,323.36-31,434.04

Finding the Fourth Proportional to 55,312.48, 76,323.36 and 31,434.04

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Solution

The fourth proportional to 55,312.48, 76,323.36 and 31,434.04 is: 43,374.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,312.48 : 76,323.36 = 31,434.04 : x
  2. Step 2: Convert to fraction form
    55,312.48/76,323.36 = 31,434.04/x
  3. Step 3: Cross multiply
    55,312.48x = 76,323.36 × 31,434.04
  4. Step 4: Simplify right side
    55,312.48x = 2,399,151,551.17
  5. Step 5: Solve for x
    x = 2,399,151,551.17/55,312.48
  6. Step 6: Final answer
    x = 43,374.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.