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Finding the Fourth Proportional to 56,909.40, 85,364.10 and 27,320.10

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Solution

The fourth proportional to 56,909.40, 85,364.10 and 27,320.10 is: 40,980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,909.40 : 85,364.10 = 27,320.10 : x
  2. Step 2: Convert to fraction form
    56,909.40/85,364.10 = 27,320.10/x
  3. Step 3: Cross multiply
    56,909.40x = 85,364.10 × 27,320.10
  4. Step 4: Simplify right side
    56,909.40x = 2,332,155,748.41
  5. Step 5: Solve for x
    x = 2,332,155,748.41/56,909.40
  6. Step 6: Final answer
    x = 40,980.15

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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.