Home / 56,493.93-77,966.55-31,005.21

Finding the Fourth Proportional to 56,493.93, 77,966.55 and 31,005.21

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Solution

The fourth proportional to 56,493.93, 77,966.55 and 31,005.21 is: 42,789.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,493.93 : 77,966.55 = 31,005.21 : x
  2. Step 2: Convert to fraction form
    56,493.93/77,966.55 = 31,005.21/x
  3. Step 3: Cross multiply
    56,493.93x = 77,966.55 × 31,005.21
  4. Step 4: Simplify right side
    56,493.93x = 2,417,369,328.82
  5. Step 5: Solve for x
    x = 2,417,369,328.82/56,493.93
  6. Step 6: Final answer
    x = 42,789.90

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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.