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Finding the Fourth Proportional to 56,298.40, 84,436.80 and 16,856.80

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Solution

The fourth proportional to 56,298.40, 84,436.80 and 16,856.80 is: 25,281.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,298.40 : 84,436.80 = 16,856.80 : x
  2. Step 2: Convert to fraction form
    56,298.40/84,436.80 = 16,856.80/x
  3. Step 3: Cross multiply
    56,298.40x = 84,436.80 × 16,856.80
  4. Step 4: Simplify right side
    56,298.40x = 1,423,334,250.24
  5. Step 5: Solve for x
    x = 1,423,334,250.24/56,298.40
  6. Step 6: Final answer
    x = 25,281.97

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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.