Home / 77,336.16-115,886.16-57,518.88

Finding the Fourth Proportional to 77,336.16, 115,886.16 and 57,518.88

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Solution

The fourth proportional to 77,336.16, 115,886.16 and 57,518.88 is: 86,190.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,336.16 : 115,886.16 = 57,518.88 : x
  2. Step 2: Convert to fraction form
    77,336.16/115,886.16 = 57,518.88/x
  3. Step 3: Cross multiply
    77,336.16x = 115,886.16 × 57,518.88
  4. Step 4: Simplify right side
    77,336.16x = 6,665,642,130.70
  5. Step 5: Solve for x
    x = 6,665,642,130.70/77,336.16
  6. Step 6: Final answer
    x = 86,190.50

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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.