Home / 65,666.40-90,558.12-52,281.84

Finding the Fourth Proportional to 65,666.40, 90,558.12 and 52,281.84

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Solution

The fourth proportional to 65,666.40, 90,558.12 and 52,281.84 is: 72,099.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,666.40 : 90,558.12 = 52,281.84 : x
  2. Step 2: Convert to fraction form
    65,666.40/90,558.12 = 52,281.84/x
  3. Step 3: Cross multiply
    65,666.40x = 90,558.12 × 52,281.84
  4. Step 4: Simplify right side
    65,666.40x = 4,734,545,140.54
  5. Step 5: Solve for x
    x = 4,734,545,140.54/65,666.40
  6. Step 6: Final answer
    x = 72,099.96

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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.