Home / 58,099.33-87,120.21-20,653.79

Finding the Fourth Proportional to 58,099.33, 87,120.21 and 20,653.79

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Solution

The fourth proportional to 58,099.33, 87,120.21 and 20,653.79 is: 30,970.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,099.33 : 87,120.21 = 20,653.79 : x
  2. Step 2: Convert to fraction form
    58,099.33/87,120.21 = 20,653.79/x
  3. Step 3: Cross multiply
    58,099.33x = 87,120.21 × 20,653.79
  4. Step 4: Simplify right side
    58,099.33x = 1,799,362,047.77
  5. Step 5: Solve for x
    x = 1,799,362,047.77/58,099.33
  6. Step 6: Final answer
    x = 30,970.45

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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.