Home / 51,130.57-70,545.96-30,707.18

Finding the Fourth Proportional to 51,130.57, 70,545.96 and 30,707.18

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Solution

The fourth proportional to 51,130.57, 70,545.96 and 30,707.18 is: 42,367.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,130.57 : 70,545.96 = 30,707.18 : x
  2. Step 2: Convert to fraction form
    51,130.57/70,545.96 = 30,707.18/x
  3. Step 3: Cross multiply
    51,130.57x = 70,545.96 × 30,707.18
  4. Step 4: Simplify right side
    51,130.57x = 2,166,267,491.99
  5. Step 5: Solve for x
    x = 2,166,267,491.99/51,130.57
  6. Step 6: Final answer
    x = 42,367.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.