Home / 55,803.68-77,009.61-30,653.18

Finding the Fourth Proportional to 55,803.68, 77,009.61 and 30,653.18

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Solution

The fourth proportional to 55,803.68, 77,009.61 and 30,653.18 is: 42,301.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,803.68 : 77,009.61 = 30,653.18 : x
  2. Step 2: Convert to fraction form
    55,803.68/77,009.61 = 30,653.18/x
  3. Step 3: Cross multiply
    55,803.68x = 77,009.61 × 30,653.18
  4. Step 4: Simplify right side
    55,803.68x = 2,360,589,437.06
  5. Step 5: Solve for x
    x = 2,360,589,437.06/55,803.68
  6. Step 6: Final answer
    x = 42,301.68

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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.