Home / 57,036.48-78,708-31,541.24

Finding the Fourth Proportional to 57,036.48, 78,708 and 31,541.24

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Solution

The fourth proportional to 57,036.48, 78,708 and 31,541.24 is: 43,525.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,036.48 : 78,708 = 31,541.24 : x
  2. Step 2: Convert to fraction form
    57,036.48/78,708 = 31,541.24/x
  3. Step 3: Cross multiply
    57,036.48x = 78,708 × 31,541.24
  4. Step 4: Simplify right side
    57,036.48x = 2,482,547,917.92
  5. Step 5: Solve for x
    x = 2,482,547,917.92/57,036.48
  6. Step 6: Final answer
    x = 43,525.62

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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.