Home / 56,038.50-77,334.78-30,889.62

Finding the Fourth Proportional to 56,038.50, 77,334.78 and 30,889.62

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Solution

The fourth proportional to 56,038.50, 77,334.78 and 30,889.62 is: 42,628.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,038.50 : 77,334.78 = 30,889.62 : x
  2. Step 2: Convert to fraction form
    56,038.50/77,334.78 = 30,889.62/x
  3. Step 3: Cross multiply
    56,038.50x = 77,334.78 × 30,889.62
  4. Step 4: Simplify right side
    56,038.50x = 2,388,841,966.98
  5. Step 5: Solve for x
    x = 2,388,841,966.98/56,038.50
  6. Step 6: Final answer
    x = 42,628.59

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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.