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Finding the Fourth Proportional to 56,015.64, 77,301.81 and 30,865.14

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Solution

The fourth proportional to 56,015.64, 77,301.81 and 30,865.14 is: 42,594.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,015.64 : 77,301.81 = 30,865.14 : x
  2. Step 2: Convert to fraction form
    56,015.64/77,301.81 = 30,865.14/x
  3. Step 3: Cross multiply
    56,015.64x = 77,301.81 × 30,865.14
  4. Step 4: Simplify right side
    56,015.64x = 2,385,931,187.90
  5. Step 5: Solve for x
    x = 2,385,931,187.90/56,015.64
  6. Step 6: Final answer
    x = 42,594.02

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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.