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Finding the Fourth Proportional to 72,870.54, 100,607.77 and 59,473.74

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Solution

The fourth proportional to 72,870.54, 100,607.77 and 59,473.74 is: 82,111.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,870.54 : 100,607.77 = 59,473.74 : x
  2. Step 2: Convert to fraction form
    72,870.54/100,607.77 = 59,473.74/x
  3. Step 3: Cross multiply
    72,870.54x = 100,607.77 × 59,473.74
  4. Step 4: Simplify right side
    72,870.54x = 5,983,520,806.58
  5. Step 5: Solve for x
    x = 5,983,520,806.58/72,870.54
  6. Step 6: Final answer
    x = 82,111.66

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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.