Home / 86,538.24-119,442-56,270.88

Finding the Fourth Proportional to 86,538.24, 119,442 and 56,270.88

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Solution

The fourth proportional to 86,538.24, 119,442 and 56,270.88 is: 77,666.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,538.24 : 119,442 = 56,270.88 : x
  2. Step 2: Convert to fraction form
    86,538.24/119,442 = 56,270.88/x
  3. Step 3: Cross multiply
    86,538.24x = 119,442 × 56,270.88
  4. Step 4: Simplify right side
    86,538.24x = 6,721,106,448.96
  5. Step 5: Solve for x
    x = 6,721,106,448.96/86,538.24
  6. Step 6: Final answer
    x = 77,666.32

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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.