Home / 84,587.12-126,748.80-31,967.84

Finding the Fourth Proportional to 84,587.12, 126,748.80 and 31,967.84

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Solution

The fourth proportional to 84,587.12, 126,748.80 and 31,967.84 is: 47,901.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,587.12 : 126,748.80 = 31,967.84 : x
  2. Step 2: Convert to fraction form
    84,587.12/126,748.80 = 31,967.84/x
  3. Step 3: Cross multiply
    84,587.12x = 126,748.80 × 31,967.84
  4. Step 4: Simplify right side
    84,587.12x = 4,051,885,358.59
  5. Step 5: Solve for x
    x = 4,051,885,358.59/84,587.12
  6. Step 6: Final answer
    x = 47,901.92

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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.