Home / 55,880.88-77,114.48-30,730.40

Finding the Fourth Proportional to 55,880.88, 77,114.48 and 30,730.40

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Solution

The fourth proportional to 55,880.88, 77,114.48 and 30,730.40 is: 42,407.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,880.88 : 77,114.48 = 30,730.40 : x
  2. Step 2: Convert to fraction form
    55,880.88/77,114.48 = 30,730.40/x
  3. Step 3: Cross multiply
    55,880.88x = 77,114.48 × 30,730.40
  4. Step 4: Simplify right side
    55,880.88x = 2,369,758,816.19
  5. Step 5: Solve for x
    x = 2,369,758,816.19/55,880.88
  6. Step 6: Final answer
    x = 42,407.33

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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.