Home / 89,430.77-134,020.40-70,628.24

Finding the Fourth Proportional to 89,430.77, 134,020.40 and 70,628.24

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Solution

The fourth proportional to 89,430.77, 134,020.40 and 70,628.24 is: 105,843.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,430.77 : 134,020.40 = 70,628.24 : x
  2. Step 2: Convert to fraction form
    89,430.77/134,020.40 = 70,628.24/x
  3. Step 3: Cross multiply
    89,430.77x = 134,020.40 × 70,628.24
  4. Step 4: Simplify right side
    89,430.77x = 9,465,623,952.85
  5. Step 5: Solve for x
    x = 9,465,623,952.85/89,430.77
  6. Step 6: Final answer
    x = 105,843.04

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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.