Home / 85,656.87-128,298.18-35,585.16

Finding the Fourth Proportional to 85,656.87, 128,298.18 and 35,585.16

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Solution

The fourth proportional to 85,656.87, 128,298.18 and 35,585.16 is: 53,300.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,656.87 : 128,298.18 = 35,585.16 : x
  2. Step 2: Convert to fraction form
    85,656.87/128,298.18 = 35,585.16/x
  3. Step 3: Cross multiply
    85,656.87x = 128,298.18 × 35,585.16
  4. Step 4: Simplify right side
    85,656.87x = 4,565,511,263.01
  5. Step 5: Solve for x
    x = 4,565,511,263.01/85,656.87
  6. Step 6: Final answer
    x = 53,300.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.