Home / 60,701.76-91,065.36-21,260.16

Finding the Fourth Proportional to 60,701.76, 91,065.36 and 21,260.16

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Solution

The fourth proportional to 60,701.76, 91,065.36 and 21,260.16 is: 31,894.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,701.76 : 91,065.36 = 21,260.16 : x
  2. Step 2: Convert to fraction form
    60,701.76/91,065.36 = 21,260.16/x
  3. Step 3: Cross multiply
    60,701.76x = 91,065.36 × 21,260.16
  4. Step 4: Simplify right side
    60,701.76x = 1,936,064,124.06
  5. Step 5: Solve for x
    x = 1,936,064,124.06/60,701.76
  6. Step 6: Final answer
    x = 31,894.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.