Home / 92,964.78-128,290.91-52,686.18

Finding the Fourth Proportional to 92,964.78, 128,290.91 and 52,686.18

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Solution

The fourth proportional to 92,964.78, 128,290.91 and 52,686.18 is: 72,706.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,964.78 : 128,290.91 = 52,686.18 : x
  2. Step 2: Convert to fraction form
    92,964.78/128,290.91 = 52,686.18/x
  3. Step 3: Cross multiply
    92,964.78x = 128,290.91 × 52,686.18
  4. Step 4: Simplify right side
    92,964.78x = 6,759,157,713.19
  5. Step 5: Solve for x
    x = 6,759,157,713.19/92,964.78
  6. Step 6: Final answer
    x = 72,706.65

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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.