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Finding the Fourth Proportional to 47,602.58, 65,661.71 and 30,628.89

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Solution

The fourth proportional to 47,602.58, 65,661.71 and 30,628.89 is: 42,248.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,602.58 : 65,661.71 = 30,628.89 : x
  2. Step 2: Convert to fraction form
    47,602.58/65,661.71 = 30,628.89/x
  3. Step 3: Cross multiply
    47,602.58x = 65,661.71 × 30,628.89
  4. Step 4: Simplify right side
    47,602.58x = 2,011,145,139.66
  5. Step 5: Solve for x
    x = 2,011,145,139.66/47,602.58
  6. Step 6: Final answer
    x = 42,248.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.