Home / 84,156.40-126,129.34-42,048.26

Finding the Fourth Proportional to 84,156.40, 126,129.34 and 42,048.26

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Solution

The fourth proportional to 84,156.40, 126,129.34 and 42,048.26 is: 63,019.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,156.40 : 126,129.34 = 42,048.26 : x
  2. Step 2: Convert to fraction form
    84,156.40/126,129.34 = 42,048.26/x
  3. Step 3: Cross multiply
    84,156.40x = 126,129.34 × 42,048.26
  4. Step 4: Simplify right side
    84,156.40x = 5,303,519,281.95
  5. Step 5: Solve for x
    x = 5,303,519,281.95/84,156.40
  6. Step 6: Final answer
    x = 63,019.80

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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.