Home / 51,228.98-70,690.26-31,090.76

Finding the Fourth Proportional to 51,228.98, 70,690.26 and 31,090.76

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Solution

The fourth proportional to 51,228.98, 70,690.26 and 31,090.76 is: 42,901.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,228.98 : 70,690.26 = 31,090.76 : x
  2. Step 2: Convert to fraction form
    51,228.98/70,690.26 = 31,090.76/x
  3. Step 3: Cross multiply
    51,228.98x = 70,690.26 × 31,090.76
  4. Step 4: Simplify right side
    51,228.98x = 2,197,813,908.00
  5. Step 5: Solve for x
    x = 2,197,813,908.00/51,228.98
  6. Step 6: Final answer
    x = 42,901.77

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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.