Home / 55,803.90-77,005.98-30,653.40

Finding the Fourth Proportional to 55,803.90, 77,005.98 and 30,653.40

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Solution

The fourth proportional to 55,803.90, 77,005.98 and 30,653.40 is: 42,299.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,803.90 : 77,005.98 = 30,653.40 : x
  2. Step 2: Convert to fraction form
    55,803.90/77,005.98 = 30,653.40/x
  3. Step 3: Cross multiply
    55,803.90x = 77,005.98 × 30,653.40
  4. Step 4: Simplify right side
    55,803.90x = 2,360,495,107.33
  5. Step 5: Solve for x
    x = 2,360,495,107.33/55,803.90
  6. Step 6: Final answer
    x = 42,299.82

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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.