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Finding the Fourth Proportional to 56,988.40, 85,482.60 and 54,266.80

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Solution

The fourth proportional to 56,988.40, 85,482.60 and 54,266.80 is: 81,400.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,988.40 : 85,482.60 = 54,266.80 : x
  2. Step 2: Convert to fraction form
    56,988.40/85,482.60 = 54,266.80/x
  3. Step 3: Cross multiply
    56,988.40x = 85,482.60 × 54,266.80
  4. Step 4: Simplify right side
    56,988.40x = 4,638,867,157.68
  5. Step 5: Solve for x
    x = 4,638,867,157.68/56,988.40
  6. Step 6: Final answer
    x = 81,400.20

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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.