Home / 55,842.08-77,062.32-30,693.20

Finding the Fourth Proportional to 55,842.08, 77,062.32 and 30,693.20

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Solution

The fourth proportional to 55,842.08, 77,062.32 and 30,693.20 is: 42,356.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,842.08 : 77,062.32 = 30,693.20 : x
  2. Step 2: Convert to fraction form
    55,842.08/77,062.32 = 30,693.20/x
  3. Step 3: Cross multiply
    55,842.08x = 77,062.32 × 30,693.20
  4. Step 4: Simplify right side
    55,842.08x = 2,365,289,200.22
  5. Step 5: Solve for x
    x = 2,365,289,200.22/55,842.08
  6. Step 6: Final answer
    x = 42,356.75

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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.