Home / 86,935.64-119,971.68-51,127.16

Finding the Fourth Proportional to 86,935.64, 119,971.68 and 51,127.16

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Solution

The fourth proportional to 86,935.64, 119,971.68 and 51,127.16 is: 70,555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,935.64 : 119,971.68 = 51,127.16 : x
  2. Step 2: Convert to fraction form
    86,935.64/119,971.68 = 51,127.16/x
  3. Step 3: Cross multiply
    86,935.64x = 119,971.68 × 51,127.16
  4. Step 4: Simplify right side
    86,935.64x = 6,133,811,278.83
  5. Step 5: Solve for x
    x = 6,133,811,278.83/86,935.64
  6. Step 6: Final answer
    x = 70,555.77

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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.