Home / 64,890.09-97,344.72-20,506.77

Finding the Fourth Proportional to 64,890.09, 97,344.72 and 20,506.77

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Solution

The fourth proportional to 64,890.09, 97,344.72 and 20,506.77 is: 30,763.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,890.09 : 97,344.72 = 20,506.77 : x
  2. Step 2: Convert to fraction form
    64,890.09/97,344.72 = 20,506.77/x
  3. Step 3: Cross multiply
    64,890.09x = 97,344.72 × 20,506.77
  4. Step 4: Simplify right side
    64,890.09x = 1,996,225,783.75
  5. Step 5: Solve for x
    x = 1,996,225,783.75/64,890.09
  6. Step 6: Final answer
    x = 30,763.18

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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.