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Finding the Fourth Proportional to 57,615.55, 86,289.04 and 55,620.07

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Solution

The fourth proportional to 57,615.55, 86,289.04 and 55,620.07 is: 83,300.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,615.55 : 86,289.04 = 55,620.07 : x
  2. Step 2: Convert to fraction form
    57,615.55/86,289.04 = 55,620.07/x
  3. Step 3: Cross multiply
    57,615.55x = 86,289.04 × 55,620.07
  4. Step 4: Simplify right side
    57,615.55x = 4,799,402,445.03
  5. Step 5: Solve for x
    x = 4,799,402,445.03/57,615.55
  6. Step 6: Final answer
    x = 83,300.47

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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.