Home / 84,205.60-126,281.06-28,030.63

Finding the Fourth Proportional to 84,205.60, 126,281.06 and 28,030.63

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Solution

The fourth proportional to 84,205.60, 126,281.06 and 28,030.63 is: 42,036.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,205.60 : 126,281.06 = 28,030.63 : x
  2. Step 2: Convert to fraction form
    84,205.60/126,281.06 = 28,030.63/x
  3. Step 3: Cross multiply
    84,205.60x = 126,281.06 × 28,030.63
  4. Step 4: Simplify right side
    84,205.60x = 3,539,737,668.87
  5. Step 5: Solve for x
    x = 3,539,737,668.87/84,205.60
  6. Step 6: Final answer
    x = 42,036.84

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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.