Home / 62,864.56-86,707.84-42,686.40

Finding the Fourth Proportional to 62,864.56, 86,707.84 and 42,686.40

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Solution

The fourth proportional to 62,864.56, 86,707.84 and 42,686.40 is: 58,876.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,864.56 : 86,707.84 = 42,686.40 : x
  2. Step 2: Convert to fraction form
    62,864.56/86,707.84 = 42,686.40/x
  3. Step 3: Cross multiply
    62,864.56x = 86,707.84 × 42,686.40
  4. Step 4: Simplify right side
    62,864.56x = 3,701,245,541.38
  5. Step 5: Solve for x
    x = 3,701,245,541.38/62,864.56
  6. Step 6: Final answer
    x = 58,876.50

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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.