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Finding the Fourth Proportional to 73,485.90, 110,228.13 and 20,888.46

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Solution

The fourth proportional to 73,485.90, 110,228.13 and 20,888.46 is: 31,332.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,485.90 : 110,228.13 = 20,888.46 : x
  2. Step 2: Convert to fraction form
    73,485.90/110,228.13 = 20,888.46/x
  3. Step 3: Cross multiply
    73,485.90x = 110,228.13 × 20,888.46
  4. Step 4: Simplify right side
    73,485.90x = 2,302,495,884.38
  5. Step 5: Solve for x
    x = 2,302,495,884.38/73,485.90
  6. Step 6: Final answer
    x = 31,332.49

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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.