Home / 53,678.08-74,055.68-31,313.92

Finding the Fourth Proportional to 53,678.08, 74,055.68 and 31,313.92

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Solution

The fourth proportional to 53,678.08, 74,055.68 and 31,313.92 is: 43,201.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,678.08 : 74,055.68 = 31,313.92 : x
  2. Step 2: Convert to fraction form
    53,678.08/74,055.68 = 31,313.92/x
  3. Step 3: Cross multiply
    53,678.08x = 74,055.68 × 31,313.92
  4. Step 4: Simplify right side
    53,678.08x = 2,318,973,639.07
  5. Step 5: Solve for x
    x = 2,318,973,639.07/53,678.08
  6. Step 6: Final answer
    x = 43,201.50

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1.5x scale

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.