Home / 56,050.32-77,350.04-30,900.72

Finding the Fourth Proportional to 56,050.32, 77,350.04 and 30,900.72

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Solution

The fourth proportional to 56,050.32, 77,350.04 and 30,900.72 is: 42,643.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,050.32 : 77,350.04 = 30,900.72 : x
  2. Step 2: Convert to fraction form
    56,050.32/77,350.04 = 30,900.72/x
  3. Step 3: Cross multiply
    56,050.32x = 77,350.04 × 30,900.72
  4. Step 4: Simplify right side
    56,050.32x = 2,390,171,928.03
  5. Step 5: Solve for x
    x = 2,390,171,928.03/56,050.32
  6. Step 6: Final answer
    x = 42,643.32

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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.