Home / 56,047.60-77,343.36-30,553.40

Finding the Fourth Proportional to 56,047.60, 77,343.36 and 30,553.40

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Solution

The fourth proportional to 56,047.60, 77,343.36 and 30,553.40 is: 42,162.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,047.60 : 77,343.36 = 30,553.40 : x
  2. Step 2: Convert to fraction form
    56,047.60/77,343.36 = 30,553.40/x
  3. Step 3: Cross multiply
    56,047.60x = 77,343.36 × 30,553.40
  4. Step 4: Simplify right side
    56,047.60x = 2,363,102,615.42
  5. Step 5: Solve for x
    x = 2,363,102,615.42/56,047.60
  6. Step 6: Final answer
    x = 42,162.42

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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.