Home / 56,965.12-78,618.55-34,315.55

Finding the Fourth Proportional to 56,965.12, 78,618.55 and 34,315.55

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Solution

The fourth proportional to 56,965.12, 78,618.55 and 34,315.55 is: 47,359.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,965.12 : 78,618.55 = 34,315.55 : x
  2. Step 2: Convert to fraction form
    56,965.12/78,618.55 = 34,315.55/x
  3. Step 3: Cross multiply
    56,965.12x = 78,618.55 × 34,315.55
  4. Step 4: Simplify right side
    56,965.12x = 2,697,838,663.73
  5. Step 5: Solve for x
    x = 2,697,838,663.73/56,965.12
  6. Step 6: Final answer
    x = 47,359.48

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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.