Home / 56,480.64-77,944.73-30,988.10

Finding the Fourth Proportional to 56,480.64, 77,944.73 and 30,988.10

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Solution

The fourth proportional to 56,480.64, 77,944.73 and 30,988.10 is: 42,764.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,480.64 : 77,944.73 = 30,988.10 : x
  2. Step 2: Convert to fraction form
    56,480.64/77,944.73 = 30,988.10/x
  3. Step 3: Cross multiply
    56,480.64x = 77,944.73 × 30,988.10
  4. Step 4: Simplify right side
    56,480.64x = 2,415,358,543.05
  5. Step 5: Solve for x
    x = 2,415,358,543.05/56,480.64
  6. Step 6: Final answer
    x = 42,764.36

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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.