Home / 77,228.64-115,363.80-56,000.16

Finding the Fourth Proportional to 77,228.64, 115,363.80 and 56,000.16

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Solution

The fourth proportional to 77,228.64, 115,363.80 and 56,000.16 is: 83,652.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,228.64 : 115,363.80 = 56,000.16 : x
  2. Step 2: Convert to fraction form
    77,228.64/115,363.80 = 56,000.16/x
  3. Step 3: Cross multiply
    77,228.64x = 115,363.80 × 56,000.16
  4. Step 4: Simplify right side
    77,228.64x = 6,460,391,258.21
  5. Step 5: Solve for x
    x = 6,460,391,258.21/77,228.64
  6. Step 6: Final answer
    x = 83,652.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.