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Finding the Fourth Proportional to 109,038.80, 163,558.20 and 56,550.80

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Solution

The fourth proportional to 109,038.80, 163,558.20 and 56,550.80 is: 84,826.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,038.80 : 163,558.20 = 56,550.80 : x
  2. Step 2: Convert to fraction form
    109,038.80/163,558.20 = 56,550.80/x
  3. Step 3: Cross multiply
    109,038.80x = 163,558.20 × 56,550.80
  4. Step 4: Simplify right side
    109,038.80x = 9,249,347,056.56
  5. Step 5: Solve for x
    x = 9,249,347,056.56/109,038.80
  6. Step 6: Final answer
    x = 84,826.20

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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.