Home / 99,762.23-137,666.35-56,735.91

Finding the Fourth Proportional to 99,762.23, 137,666.35 and 56,735.91

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Solution

The fourth proportional to 99,762.23, 137,666.35 and 56,735.91 is: 78,292.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,762.23 : 137,666.35 = 56,735.91 : x
  2. Step 2: Convert to fraction form
    99,762.23/137,666.35 = 56,735.91/x
  3. Step 3: Cross multiply
    99,762.23x = 137,666.35 × 56,735.91
  4. Step 4: Simplify right side
    99,762.23x = 7,810,625,253.45
  5. Step 5: Solve for x
    x = 7,810,625,253.45/99,762.23
  6. Step 6: Final answer
    x = 78,292.41

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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.