Home / 55,820.80-77,033.36-30,670.32

Finding the Fourth Proportional to 55,820.80, 77,033.36 and 30,670.32

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Solution

The fourth proportional to 55,820.80, 77,033.36 and 30,670.32 is: 42,325.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,820.80 : 77,033.36 = 30,670.32 : x
  2. Step 2: Convert to fraction form
    55,820.80/77,033.36 = 30,670.32/x
  3. Step 3: Cross multiply
    55,820.80x = 77,033.36 × 30,670.32
  4. Step 4: Simplify right side
    55,820.80x = 2,362,637,801.88
  5. Step 5: Solve for x
    x = 2,362,637,801.88/55,820.80
  6. Step 6: Final answer
    x = 42,325.40

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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.