Home / 99,555.84-137,391.36-56,534.46

Finding the Fourth Proportional to 99,555.84, 137,391.36 and 56,534.46

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Solution

The fourth proportional to 99,555.84, 137,391.36 and 56,534.46 is: 78,020.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,555.84 : 137,391.36 = 56,534.46 : x
  2. Step 2: Convert to fraction form
    99,555.84/137,391.36 = 56,534.46/x
  3. Step 3: Cross multiply
    99,555.84x = 137,391.36 × 56,534.46
  4. Step 4: Simplify right side
    99,555.84x = 7,767,346,346.27
  5. Step 5: Solve for x
    x = 7,767,346,346.27/99,555.84
  6. Step 6: Final answer
    x = 78,020.00

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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.