Home / 86,693.64-119,542.68-56,423.12

Finding the Fourth Proportional to 86,693.64, 119,542.68 and 56,423.12

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Solution

The fourth proportional to 86,693.64, 119,542.68 and 56,423.12 is: 77,802.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,693.64 : 119,542.68 = 56,423.12 : x
  2. Step 2: Convert to fraction form
    86,693.64/119,542.68 = 56,423.12/x
  3. Step 3: Cross multiply
    86,693.64x = 119,542.68 × 56,423.12
  4. Step 4: Simplify right side
    86,693.64x = 6,744,970,978.76
  5. Step 5: Solve for x
    x = 6,744,970,978.76/86,693.64
  6. Step 6: Final answer
    x = 77,802.37

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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.