Home / 55,557.12-76,670.76-30,406.80

Finding the Fourth Proportional to 55,557.12, 76,670.76 and 30,406.80

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Solution

The fourth proportional to 55,557.12, 76,670.76 and 30,406.80 is: 41,962.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,557.12 : 76,670.76 = 30,406.80 : x
  2. Step 2: Convert to fraction form
    55,557.12/76,670.76 = 30,406.80/x
  3. Step 3: Cross multiply
    55,557.12x = 76,670.76 × 30,406.80
  4. Step 4: Simplify right side
    55,557.12x = 2,331,312,465.17
  5. Step 5: Solve for x
    x = 2,331,312,465.17/55,557.12
  6. Step 6: Final answer
    x = 41,962.44

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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.