Home / 84,389.64-116,553.30-57,485.40

Finding the Fourth Proportional to 84,389.64, 116,553.30 and 57,485.40

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Solution

The fourth proportional to 84,389.64, 116,553.30 and 57,485.40 is: 79,394.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,389.64 : 116,553.30 = 57,485.40 : x
  2. Step 2: Convert to fraction form
    84,389.64/116,553.30 = 57,485.40/x
  3. Step 3: Cross multiply
    84,389.64x = 116,553.30 × 57,485.40
  4. Step 4: Simplify right side
    84,389.64x = 6,700,113,071.82
  5. Step 5: Solve for x
    x = 6,700,113,071.82/84,389.64
  6. Step 6: Final answer
    x = 79,394.97

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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.