Home / 92,921.40-128,336.93-62,654.53

Finding the Fourth Proportional to 92,921.40, 128,336.93 and 62,654.53

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Solution

The fourth proportional to 92,921.40, 128,336.93 and 62,654.53 is: 86,534.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,921.40 : 128,336.93 = 62,654.53 : x
  2. Step 2: Convert to fraction form
    92,921.40/128,336.93 = 62,654.53/x
  3. Step 3: Cross multiply
    92,921.40x = 128,336.93 × 62,654.53
  4. Step 4: Simplify right side
    92,921.40x = 8,040,890,030.79
  5. Step 5: Solve for x
    x = 8,040,890,030.79/92,921.40
  6. Step 6: Final answer
    x = 86,534.32

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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.