Home / 64,419.50-96,638.47-20,050.74

Finding the Fourth Proportional to 64,419.50, 96,638.47 and 20,050.74

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Solution

The fourth proportional to 64,419.50, 96,638.47 and 20,050.74 is: 30,078.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,419.50 : 96,638.47 = 20,050.74 : x
  2. Step 2: Convert to fraction form
    64,419.50/96,638.47 = 20,050.74/x
  3. Step 3: Cross multiply
    64,419.50x = 96,638.47 × 20,050.74
  4. Step 4: Simplify right side
    64,419.50x = 1,937,672,785.84
  5. Step 5: Solve for x
    x = 1,937,672,785.84/64,419.50
  6. Step 6: Final answer
    x = 30,078.98

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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.