Home / 84,492.48-126,741.09-31,890.24

Finding the Fourth Proportional to 84,492.48, 126,741.09 and 31,890.24

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Solution

The fourth proportional to 84,492.48, 126,741.09 and 31,890.24 is: 47,836.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,492.48 : 126,741.09 = 31,890.24 : x
  2. Step 2: Convert to fraction form
    84,492.48/126,741.09 = 31,890.24/x
  3. Step 3: Cross multiply
    84,492.48x = 126,741.09 × 31,890.24
  4. Step 4: Simplify right side
    84,492.48x = 4,041,803,777.96
  5. Step 5: Solve for x
    x = 4,041,803,777.96/84,492.48
  6. Step 6: Final answer
    x = 47,836.25

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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.