Home / 89,828.80-134,743.20-56,586.40

Finding the Fourth Proportional to 89,828.80, 134,743.20 and 56,586.40

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Solution

The fourth proportional to 89,828.80, 134,743.20 and 56,586.40 is: 84,879.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,828.80 : 134,743.20 = 56,586.40 : x
  2. Step 2: Convert to fraction form
    89,828.80/134,743.20 = 56,586.40/x
  3. Step 3: Cross multiply
    89,828.80x = 134,743.20 × 56,586.40
  4. Step 4: Simplify right side
    89,828.80x = 7,624,632,612.48
  5. Step 5: Solve for x
    x = 7,624,632,612.48/89,828.80
  6. Step 6: Final answer
    x = 84,879.60

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1.5x scale

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.