Home / 56,271.66-77,654.01-30,777.45

Finding the Fourth Proportional to 56,271.66, 77,654.01 and 30,777.45

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Solution

The fourth proportional to 56,271.66, 77,654.01 and 30,777.45 is: 42,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,271.66 : 77,654.01 = 30,777.45 : x
  2. Step 2: Convert to fraction form
    56,271.66/77,654.01 = 30,777.45/x
  3. Step 3: Cross multiply
    56,271.66x = 77,654.01 × 30,777.45
  4. Step 4: Simplify right side
    56,271.66x = 2,389,992,410.07
  5. Step 5: Solve for x
    x = 2,389,992,410.07/56,271.66
  6. Step 6: Final answer
    x = 42,472.40

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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.