Home / 77,045.32-115,478.88-32,605.48

Finding the Fourth Proportional to 77,045.32, 115,478.88 and 32,605.48

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Solution

The fourth proportional to 77,045.32, 115,478.88 and 32,605.48 is: 48,870.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,045.32 : 115,478.88 = 32,605.48 : x
  2. Step 2: Convert to fraction form
    77,045.32/115,478.88 = 32,605.48/x
  3. Step 3: Cross multiply
    77,045.32x = 115,478.88 × 32,605.48
  4. Step 4: Simplify right side
    77,045.32x = 3,765,244,312.26
  5. Step 5: Solve for x
    x = 3,765,244,312.26/77,045.32
  6. Step 6: Final answer
    x = 48,870.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.