Home / 91,395.18-126,124.48-51,108.48

Finding the Fourth Proportional to 91,395.18, 126,124.48 and 51,108.48

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Solution

The fourth proportional to 91,395.18, 126,124.48 and 51,108.48 is: 70,529.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,395.18 : 126,124.48 = 51,108.48 : x
  2. Step 2: Convert to fraction form
    91,395.18/126,124.48 = 51,108.48/x
  3. Step 3: Cross multiply
    91,395.18x = 126,124.48 × 51,108.48
  4. Step 4: Simplify right side
    91,395.18x = 6,446,030,463.59
  5. Step 5: Solve for x
    x = 6,446,030,463.59/91,395.18
  6. Step 6: Final answer
    x = 70,529.22

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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.