Home / 56,259.24-77,639.40-30,767.10

Finding the Fourth Proportional to 56,259.24, 77,639.40 and 30,767.10

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Solution

The fourth proportional to 56,259.24, 77,639.40 and 30,767.10 is: 42,459.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,259.24 : 77,639.40 = 30,767.10 : x
  2. Step 2: Convert to fraction form
    56,259.24/77,639.40 = 30,767.10/x
  3. Step 3: Cross multiply
    56,259.24x = 77,639.40 × 30,767.10
  4. Step 4: Simplify right side
    56,259.24x = 2,388,739,183.74
  5. Step 5: Solve for x
    x = 2,388,739,183.74/56,259.24
  6. Step 6: Final answer
    x = 42,459.50

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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.