Home / 56,057.36-77,359.68-30,907.76

Finding the Fourth Proportional to 56,057.36, 77,359.68 and 30,907.76

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Solution

The fourth proportional to 56,057.36, 77,359.68 and 30,907.76 is: 42,653.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,057.36 : 77,359.68 = 30,907.76 : x
  2. Step 2: Convert to fraction form
    56,057.36/77,359.68 = 30,907.76/x
  3. Step 3: Cross multiply
    56,057.36x = 77,359.68 × 30,907.76
  4. Step 4: Simplify right side
    56,057.36x = 2,391,014,423.12
  5. Step 5: Solve for x
    x = 2,391,014,423.12/56,057.36
  6. Step 6: Final answer
    x = 42,653.00

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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.