Home / 74,501.40-111,881.70-39,509.40

Finding the Fourth Proportional to 74,501.40, 111,881.70 and 39,509.40

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Solution

The fourth proportional to 74,501.40, 111,881.70 and 39,509.40 is: 59,332.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,501.40 : 111,881.70 = 39,509.40 : x
  2. Step 2: Convert to fraction form
    74,501.40/111,881.70 = 39,509.40/x
  3. Step 3: Cross multiply
    74,501.40x = 111,881.70 × 39,509.40
  4. Step 4: Simplify right side
    74,501.40x = 4,420,378,837.98
  5. Step 5: Solve for x
    x = 4,420,378,837.98/74,501.40
  6. Step 6: Final answer
    x = 59,332.83

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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.