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Finding the Fourth Proportional to 43,009.60, 64,368.60 and 37,760.80

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Solution

The fourth proportional to 43,009.60, 64,368.60 and 37,760.80 is: 56,513.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,009.60 : 64,368.60 = 37,760.80 : x
  2. Step 2: Convert to fraction form
    43,009.60/64,368.60 = 37,760.80/x
  3. Step 3: Cross multiply
    43,009.60x = 64,368.60 × 37,760.80
  4. Step 4: Simplify right side
    43,009.60x = 2,430,609,830.88
  5. Step 5: Solve for x
    x = 2,430,609,830.88/43,009.60
  6. Step 6: Final answer
    x = 56,513.19

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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.