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Finding the Fourth Proportional to 56,459.60, 84,516.60 and 40,907.60

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Solution

The fourth proportional to 56,459.60, 84,516.60 and 40,907.60 is: 61,236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,459.60 : 84,516.60 = 40,907.60 : x
  2. Step 2: Convert to fraction form
    56,459.60/84,516.60 = 40,907.60/x
  3. Step 3: Cross multiply
    56,459.60x = 84,516.60 × 40,907.60
  4. Step 4: Simplify right side
    56,459.60x = 3,457,371,266.16
  5. Step 5: Solve for x
    x = 3,457,371,266.16/56,459.60
  6. Step 6: Final answer
    x = 61,236.20

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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.