Home / 56,030.68-77,322.36-30,880.20

Finding the Fourth Proportional to 56,030.68, 77,322.36 and 30,880.20

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Solution

The fourth proportional to 56,030.68, 77,322.36 and 30,880.20 is: 42,614.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,030.68 : 77,322.36 = 30,880.20 : x
  2. Step 2: Convert to fraction form
    56,030.68/77,322.36 = 30,880.20/x
  3. Step 3: Cross multiply
    56,030.68x = 77,322.36 × 30,880.20
  4. Step 4: Simplify right side
    56,030.68x = 2,387,729,941.27
  5. Step 5: Solve for x
    x = 2,387,729,941.27/56,030.68
  6. Step 6: Final answer
    x = 42,614.69

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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.