Home / 90,563.18-124,900.44-58,303.40

Finding the Fourth Proportional to 90,563.18, 124,900.44 and 58,303.40

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Solution

The fourth proportional to 90,563.18, 124,900.44 and 58,303.40 is: 80,409.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,563.18 : 124,900.44 = 58,303.40 : x
  2. Step 2: Convert to fraction form
    90,563.18/124,900.44 = 58,303.40/x
  3. Step 3: Cross multiply
    90,563.18x = 124,900.44 × 58,303.40
  4. Step 4: Simplify right side
    90,563.18x = 7,282,120,313.50
  5. Step 5: Solve for x
    x = 7,282,120,313.50/90,563.18
  6. Step 6: Final answer
    x = 80,409.28

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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.