Home / 84,901.64-127,403.50-31,632.80

Finding the Fourth Proportional to 84,901.64, 127,403.50 and 31,632.80

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Solution

The fourth proportional to 84,901.64, 127,403.50 and 31,632.80 is: 47,468.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,901.64 : 127,403.50 = 31,632.80 : x
  2. Step 2: Convert to fraction form
    84,901.64/127,403.50 = 31,632.80/x
  3. Step 3: Cross multiply
    84,901.64x = 127,403.50 × 31,632.80
  4. Step 4: Simplify right side
    84,901.64x = 4,030,129,434.80
  5. Step 5: Solve for x
    x = 4,030,129,434.80/84,901.64
  6. Step 6: Final answer
    x = 47,468.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.