Home / 53,005.80-79,518.30-26,644.20

Finding the Fourth Proportional to 53,005.80, 79,518.30 and 26,644.20

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Solution

The fourth proportional to 53,005.80, 79,518.30 and 26,644.20 is: 39,971.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,005.80 : 79,518.30 = 26,644.20 : x
  2. Step 2: Convert to fraction form
    53,005.80/79,518.30 = 26,644.20/x
  3. Step 3: Cross multiply
    53,005.80x = 79,518.30 × 26,644.20
  4. Step 4: Simplify right side
    53,005.80x = 2,118,701,488.86
  5. Step 5: Solve for x
    x = 2,118,701,488.86/53,005.80
  6. Step 6: Final answer
    x = 39,971.13

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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.