Home / 53,231.51-79,900.09-28,271.77

Finding the Fourth Proportional to 53,231.51, 79,900.09 and 28,271.77

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Solution

The fourth proportional to 53,231.51, 79,900.09 and 28,271.77 is: 42,435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,231.51 : 79,900.09 = 28,271.77 : x
  2. Step 2: Convert to fraction form
    53,231.51/79,900.09 = 28,271.77/x
  3. Step 3: Cross multiply
    53,231.51x = 79,900.09 × 28,271.77
  4. Step 4: Simplify right side
    53,231.51x = 2,258,916,697.03
  5. Step 5: Solve for x
    x = 2,258,916,697.03/53,231.51
  6. Step 6: Final answer
    x = 42,435.70

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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.