Home / 70,018.03-105,043.48-43,030.45

Finding the Fourth Proportional to 70,018.03, 105,043.48 and 43,030.45

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Solution

The fourth proportional to 70,018.03, 105,043.48 and 43,030.45 is: 64,555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,018.03 : 105,043.48 = 43,030.45 : x
  2. Step 2: Convert to fraction form
    70,018.03/105,043.48 = 43,030.45/x
  3. Step 3: Cross multiply
    70,018.03x = 105,043.48 × 43,030.45
  4. Step 4: Simplify right side
    70,018.03x = 4,520,067,843.78
  5. Step 5: Solve for x
    x = 4,520,067,843.78/70,018.03
  6. Step 6: Final answer
    x = 64,555.77

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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.