Home / 55,436.88-83,117.34-19,897.40

Finding the Fourth Proportional to 55,436.88, 83,117.34 and 19,897.40

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Solution

The fourth proportional to 55,436.88, 83,117.34 and 19,897.40 is: 29,832.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,436.88 : 83,117.34 = 19,897.40 : x
  2. Step 2: Convert to fraction form
    55,436.88/83,117.34 = 19,897.40/x
  3. Step 3: Cross multiply
    55,436.88x = 83,117.34 × 19,897.40
  4. Step 4: Simplify right side
    55,436.88x = 1,653,818,960.92
  5. Step 5: Solve for x
    x = 1,653,818,960.92/55,436.88
  6. Step 6: Final answer
    x = 29,832.47

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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.