Home / 56,303.85-77,698.12-30,810.12

Finding the Fourth Proportional to 56,303.85, 77,698.12 and 30,810.12

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Solution

The fourth proportional to 56,303.85, 77,698.12 and 30,810.12 is: 42,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,303.85 : 77,698.12 = 30,810.12 : x
  2. Step 2: Convert to fraction form
    56,303.85/77,698.12 = 30,810.12/x
  3. Step 3: Cross multiply
    56,303.85x = 77,698.12 × 30,810.12
  4. Step 4: Simplify right side
    56,303.85x = 2,393,888,090.35
  5. Step 5: Solve for x
    x = 2,393,888,090.35/56,303.85
  6. Step 6: Final answer
    x = 42,517.30

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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.