Home / 56,048.45-77,345.30-30,555.30

Finding the Fourth Proportional to 56,048.45, 77,345.30 and 30,555.30

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Solution

The fourth proportional to 56,048.45, 77,345.30 and 30,555.30 is: 42,165.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,048.45 : 77,345.30 = 30,555.30 : x
  2. Step 2: Convert to fraction form
    56,048.45/77,345.30 = 30,555.30/x
  3. Step 3: Cross multiply
    56,048.45x = 77,345.30 × 30,555.30
  4. Step 4: Simplify right side
    56,048.45x = 2,363,308,692.31
  5. Step 5: Solve for x
    x = 2,363,308,692.31/56,048.45
  6. Step 6: Final answer
    x = 42,165.46

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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.