Home / 55,935.42-77,190.90-30,784.92

Finding the Fourth Proportional to 55,935.42, 77,190.90 and 30,784.92

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Solution

The fourth proportional to 55,935.42, 77,190.90 and 30,784.92 is: 42,483.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,935.42 : 77,190.90 = 30,784.92 : x
  2. Step 2: Convert to fraction form
    55,935.42/77,190.90 = 30,784.92/x
  3. Step 3: Cross multiply
    55,935.42x = 77,190.90 × 30,784.92
  4. Step 4: Simplify right side
    55,935.42x = 2,376,315,681.23
  5. Step 5: Solve for x
    x = 2,376,315,681.23/55,935.42
  6. Step 6: Final answer
    x = 42,483.20

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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.