Home / 81,703.08-112,741.47-45,897.03

Finding the Fourth Proportional to 81,703.08, 112,741.47 and 45,897.03

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Solution

The fourth proportional to 81,703.08, 112,741.47 and 45,897.03 is: 63,332.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,703.08 : 112,741.47 = 45,897.03 : x
  2. Step 2: Convert to fraction form
    81,703.08/112,741.47 = 45,897.03/x
  3. Step 3: Cross multiply
    81,703.08x = 112,741.47 × 45,897.03
  4. Step 4: Simplify right side
    81,703.08x = 5,174,498,630.83
  5. Step 5: Solve for x
    x = 5,174,498,630.83/81,703.08
  6. Step 6: Final answer
    x = 63,332.97

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1.5x scale

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.