Home / 86,425.78-119,225.18-57,752.48

Finding the Fourth Proportional to 86,425.78, 119,225.18 and 57,752.48

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Solution

The fourth proportional to 86,425.78, 119,225.18 and 57,752.48 is: 79,670.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,425.78 : 119,225.18 = 57,752.48 : x
  2. Step 2: Convert to fraction form
    86,425.78/119,225.18 = 57,752.48/x
  3. Step 3: Cross multiply
    86,425.78x = 119,225.18 × 57,752.48
  4. Step 4: Simplify right side
    86,425.78x = 6,885,549,351.61
  5. Step 5: Solve for x
    x = 6,885,549,351.61/86,425.78
  6. Step 6: Final answer
    x = 79,670.09

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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.