Home / 81,775.24-112,817.86-45,957.08

Finding the Fourth Proportional to 81,775.24, 112,817.86 and 45,957.08

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Solution

The fourth proportional to 81,775.24, 112,817.86 and 45,957.08 is: 63,402.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,775.24 : 112,817.86 = 45,957.08 : x
  2. Step 2: Convert to fraction form
    81,775.24/112,817.86 = 45,957.08/x
  3. Step 3: Cross multiply
    81,775.24x = 112,817.86 × 45,957.08
  4. Step 4: Simplify right side
    81,775.24x = 5,184,779,417.45
  5. Step 5: Solve for x
    x = 5,184,779,417.45/81,775.24
  6. Step 6: Final answer
    x = 63,402.80

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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.