Home / 56,049.84-77,345.28-30,899.34

Finding the Fourth Proportional to 56,049.84, 77,345.28 and 30,899.34

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Solution

The fourth proportional to 56,049.84, 77,345.28 and 30,899.34 is: 42,639.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,049.84 : 77,345.28 = 30,899.34 : x
  2. Step 2: Convert to fraction form
    56,049.84/77,345.28 = 30,899.34/x
  3. Step 3: Cross multiply
    56,049.84x = 77,345.28 × 30,899.34
  4. Step 4: Simplify right side
    56,049.84x = 2,389,918,104.12
  5. Step 5: Solve for x
    x = 2,389,918,104.12/56,049.84
  6. Step 6: Final answer
    x = 42,639.16

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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.