Home / 99,333.56-137,075.85-56,312.44

Finding the Fourth Proportional to 99,333.56, 137,075.85 and 56,312.44

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Solution

The fourth proportional to 99,333.56, 137,075.85 and 56,312.44 is: 77,708.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,333.56 : 137,075.85 = 56,312.44 : x
  2. Step 2: Convert to fraction form
    99,333.56/137,075.85 = 56,312.44/x
  3. Step 3: Cross multiply
    99,333.56x = 137,075.85 × 56,312.44
  4. Step 4: Simplify right side
    99,333.56x = 7,719,075,235.88
  5. Step 5: Solve for x
    x = 7,719,075,235.88/99,333.56
  6. Step 6: Final answer
    x = 77,708.63

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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.