Home / 43,125.40-64,688.10-11,535.40

Finding the Fourth Proportional to 43,125.40, 64,688.10 and 11,535.40

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Solution

The fourth proportional to 43,125.40, 64,688.10 and 11,535.40 is: 17,303.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,125.40 : 64,688.10 = 11,535.40 : x
  2. Step 2: Convert to fraction form
    43,125.40/64,688.10 = 11,535.40/x
  3. Step 3: Cross multiply
    43,125.40x = 64,688.10 × 11,535.40
  4. Step 4: Simplify right side
    43,125.40x = 746,203,108.74
  5. Step 5: Solve for x
    x = 746,203,108.74/43,125.40
  6. Step 6: Final answer
    x = 17,303.10

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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.