Home / 56,135.46-77,466.75-30,984.78

Finding the Fourth Proportional to 56,135.46, 77,466.75 and 30,984.78

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Solution

The fourth proportional to 56,135.46, 77,466.75 and 30,984.78 is: 42,758.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,135.46 : 77,466.75 = 30,984.78 : x
  2. Step 2: Convert to fraction form
    56,135.46/77,466.75 = 30,984.78/x
  3. Step 3: Cross multiply
    56,135.46x = 77,466.75 × 30,984.78
  4. Step 4: Simplify right side
    56,135.46x = 2,400,290,206.07
  5. Step 5: Solve for x
    x = 2,400,290,206.07/56,135.46
  6. Step 6: Final answer
    x = 42,758.89

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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.