Home / 55,557.72-76,666.70-30,402.36

Finding the Fourth Proportional to 55,557.72, 76,666.70 and 30,402.36

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Solution

The fourth proportional to 55,557.72, 76,666.70 and 30,402.36 is: 41,953.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,557.72 : 76,666.70 = 30,402.36 : x
  2. Step 2: Convert to fraction form
    55,557.72/76,666.70 = 30,402.36/x
  3. Step 3: Cross multiply
    55,557.72x = 76,666.70 × 30,402.36
  4. Step 4: Simplify right side
    55,557.72x = 2,330,848,613.41
  5. Step 5: Solve for x
    x = 2,330,848,613.41/55,557.72
  6. Step 6: Final answer
    x = 41,953.64

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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.