Home / 55,426.30-76,487.80-30,275.26

Finding the Fourth Proportional to 55,426.30, 76,487.80 and 30,275.26

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Solution

The fourth proportional to 55,426.30, 76,487.80 and 30,275.26 is: 41,779.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,426.30 : 76,487.80 = 30,275.26 : x
  2. Step 2: Convert to fraction form
    55,426.30/76,487.80 = 30,275.26/x
  3. Step 3: Cross multiply
    55,426.30x = 76,487.80 × 30,275.26
  4. Step 4: Simplify right side
    55,426.30x = 2,315,688,031.83
  5. Step 5: Solve for x
    x = 2,315,688,031.83/55,426.30
  6. Step 6: Final answer
    x = 41,779.59

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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.