Home / 56,332-77,739.78-31,183.12

Finding the Fourth Proportional to 56,332, 77,739.78 and 31,183.12

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Solution

The fourth proportional to 56,332, 77,739.78 and 31,183.12 is: 43,033.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,332 : 77,739.78 = 31,183.12 : x
  2. Step 2: Convert to fraction form
    56,332/77,739.78 = 31,183.12/x
  3. Step 3: Cross multiply
    56,332x = 77,739.78 × 31,183.12
  4. Step 4: Simplify right side
    56,332x = 2,424,168,888.51
  5. Step 5: Solve for x
    x = 2,424,168,888.51/56,332
  6. Step 6: Final answer
    x = 43,033.60

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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.