Home / 83,100.36-124,666.86-30,510.30

Finding the Fourth Proportional to 83,100.36, 124,666.86 and 30,510.30

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Solution

The fourth proportional to 83,100.36, 124,666.86 and 30,510.30 is: 45,771.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,100.36 : 124,666.86 = 30,510.30 : x
  2. Step 2: Convert to fraction form
    83,100.36/124,666.86 = 30,510.30/x
  3. Step 3: Cross multiply
    83,100.36x = 124,666.86 × 30,510.30
  4. Step 4: Simplify right side
    83,100.36x = 3,803,623,298.66
  5. Step 5: Solve for x
    x = 3,803,623,298.66/83,100.36
  6. Step 6: Final answer
    x = 45,771.44

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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.