Home / 55,779.84-76,977.54-30,629.34

Finding the Fourth Proportional to 55,779.84, 76,977.54 and 30,629.34

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Solution

The fourth proportional to 55,779.84, 76,977.54 and 30,629.34 is: 42,269.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,779.84 : 76,977.54 = 30,629.34 : x
  2. Step 2: Convert to fraction form
    55,779.84/76,977.54 = 30,629.34/x
  3. Step 3: Cross multiply
    55,779.84x = 76,977.54 × 30,629.34
  4. Step 4: Simplify right side
    55,779.84x = 2,357,771,245.02
  5. Step 5: Solve for x
    x = 2,357,771,245.02/55,779.84
  6. Step 6: Final answer
    x = 42,269.24

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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.