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Finding the Fourth Proportional to 56,409.68, 84,616.68 and 16,972.40

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Solution

The fourth proportional to 56,409.68, 84,616.68 and 16,972.40 is: 25,459.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,409.68 : 84,616.68 = 16,972.40 : x
  2. Step 2: Convert to fraction form
    56,409.68/84,616.68 = 16,972.40/x
  3. Step 3: Cross multiply
    56,409.68x = 84,616.68 × 16,972.40
  4. Step 4: Simplify right side
    56,409.68x = 1,436,148,139.63
  5. Step 5: Solve for x
    x = 1,436,148,139.63/56,409.68
  6. Step 6: Final answer
    x = 25,459.25

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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.