Home / 88,262.45-121,830.05-56,431.48

Finding the Fourth Proportional to 88,262.45, 121,830.05 and 56,431.48

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Solution

The fourth proportional to 88,262.45, 121,830.05 and 56,431.48 is: 77,893.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,262.45 : 121,830.05 = 56,431.48 : x
  2. Step 2: Convert to fraction form
    88,262.45/121,830.05 = 56,431.48/x
  3. Step 3: Cross multiply
    88,262.45x = 121,830.05 × 56,431.48
  4. Step 4: Simplify right side
    88,262.45x = 6,875,049,138.67
  5. Step 5: Solve for x
    x = 6,875,049,138.67/88,262.45
  6. Step 6: Final answer
    x = 77,893.25

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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.