Home / 72,232.50-99,678.33-39,966.60

Finding the Fourth Proportional to 72,232.50, 99,678.33 and 39,966.60

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Solution

The fourth proportional to 72,232.50, 99,678.33 and 39,966.60 is: 55,152.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,232.50 : 99,678.33 = 39,966.60 : x
  2. Step 2: Convert to fraction form
    72,232.50/99,678.33 = 39,966.60/x
  3. Step 3: Cross multiply
    72,232.50x = 99,678.33 × 39,966.60
  4. Step 4: Simplify right side
    72,232.50x = 3,983,803,943.78
  5. Step 5: Solve for x
    x = 3,983,803,943.78/72,232.50
  6. Step 6: Final answer
    x = 55,152.51

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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.