Home / 65,779.10-90,816.67-45,628.94

Finding the Fourth Proportional to 65,779.10, 90,816.67 and 45,628.94

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Solution

The fourth proportional to 65,779.10, 90,816.67 and 45,628.94 is: 62,996.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,779.10 : 90,816.67 = 45,628.94 : x
  2. Step 2: Convert to fraction form
    65,779.10/90,816.67 = 45,628.94/x
  3. Step 3: Cross multiply
    65,779.10x = 90,816.67 × 45,628.94
  4. Step 4: Simplify right side
    65,779.10x = 4,143,868,031.33
  5. Step 5: Solve for x
    x = 4,143,868,031.33/65,779.10
  6. Step 6: Final answer
    x = 62,996.72

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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.