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Finding the Fourth Proportional to 61,986, 93,316.32 and 56,474.76

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Solution

The fourth proportional to 61,986, 93,316.32 and 56,474.76 is: 85,019.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,986 : 93,316.32 = 56,474.76 : x
  2. Step 2: Convert to fraction form
    61,986/93,316.32 = 56,474.76/x
  3. Step 3: Cross multiply
    61,986x = 93,316.32 × 56,474.76
  4. Step 4: Simplify right side
    61,986x = 5,270,016,776.08
  5. Step 5: Solve for x
    x = 5,270,016,776.08/61,986
  6. Step 6: Final answer
    x = 85,019.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.