Home / 56,039.40-77,334.30-30,888.90

Finding the Fourth Proportional to 56,039.40, 77,334.30 and 30,888.90

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Solution

The fourth proportional to 56,039.40, 77,334.30 and 30,888.90 is: 42,626.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,039.40 : 77,334.30 = 30,888.90 : x
  2. Step 2: Convert to fraction form
    56,039.40/77,334.30 = 30,888.90/x
  3. Step 3: Cross multiply
    56,039.40x = 77,334.30 × 30,888.90
  4. Step 4: Simplify right side
    56,039.40x = 2,388,771,459.27
  5. Step 5: Solve for x
    x = 2,388,771,459.27/56,039.40
  6. Step 6: Final answer
    x = 42,626.64

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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.