Home / 57,345.40-86,018.10-45,535.60

Finding the Fourth Proportional to 57,345.40, 86,018.10 and 45,535.60

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Solution

The fourth proportional to 57,345.40, 86,018.10 and 45,535.60 is: 68,303.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,345.40 : 86,018.10 = 45,535.60 : x
  2. Step 2: Convert to fraction form
    57,345.40/86,018.10 = 45,535.60/x
  3. Step 3: Cross multiply
    57,345.40x = 86,018.10 × 45,535.60
  4. Step 4: Simplify right side
    57,345.40x = 3,916,885,794.36
  5. Step 5: Solve for x
    x = 3,916,885,794.36/57,345.40
  6. Step 6: Final answer
    x = 68,303.40

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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.