Home / 54,803.16-75,628.20-30,929.76

Finding the Fourth Proportional to 54,803.16, 75,628.20 and 30,929.76

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Solution

The fourth proportional to 54,803.16, 75,628.20 and 30,929.76 is: 42,682.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,803.16 : 75,628.20 = 30,929.76 : x
  2. Step 2: Convert to fraction form
    54,803.16/75,628.20 = 30,929.76/x
  3. Step 3: Cross multiply
    54,803.16x = 75,628.20 × 30,929.76
  4. Step 4: Simplify right side
    54,803.16x = 2,339,162,075.23
  5. Step 5: Solve for x
    x = 2,339,162,075.23/54,803.16
  6. Step 6: Final answer
    x = 42,682.98

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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.