Home / 60,510.66-90,778.31-21,070.86

Finding the Fourth Proportional to 60,510.66, 90,778.31 and 21,070.86

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Solution

The fourth proportional to 60,510.66, 90,778.31 and 21,070.86 is: 31,610.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,510.66 : 90,778.31 = 21,070.86 : x
  2. Step 2: Convert to fraction form
    60,510.66/90,778.31 = 21,070.86/x
  3. Step 3: Cross multiply
    60,510.66x = 90,778.31 × 21,070.86
  4. Step 4: Simplify right side
    60,510.66x = 1,912,776,955.69
  5. Step 5: Solve for x
    x = 1,912,776,955.69/60,510.66
  6. Step 6: Final answer
    x = 31,610.58

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1.5x scale

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.