Home / 42,703.20-64,054.80-19,010.70

Finding the Fourth Proportional to 42,703.20, 64,054.80 and 19,010.70

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Solution

The fourth proportional to 42,703.20, 64,054.80 and 19,010.70 is: 28,516.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,703.20 : 64,054.80 = 19,010.70 : x
  2. Step 2: Convert to fraction form
    42,703.20/64,054.80 = 19,010.70/x
  3. Step 3: Cross multiply
    42,703.20x = 64,054.80 × 19,010.70
  4. Step 4: Simplify right side
    42,703.20x = 1,217,726,586.36
  5. Step 5: Solve for x
    x = 1,217,726,586.36/42,703.20
  6. Step 6: Final answer
    x = 28,516.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.