Home / 77,343.08-106,740.32-45,075.92

Finding the Fourth Proportional to 77,343.08, 106,740.32 and 45,075.92

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Solution

The fourth proportional to 77,343.08, 106,740.32 and 45,075.92 is: 62,208.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,343.08 : 106,740.32 = 45,075.92 : x
  2. Step 2: Convert to fraction form
    77,343.08/106,740.32 = 45,075.92/x
  3. Step 3: Cross multiply
    77,343.08x = 106,740.32 × 45,075.92
  4. Step 4: Simplify right side
    77,343.08x = 4,811,418,125.09
  5. Step 5: Solve for x
    x = 4,811,418,125.09/77,343.08
  6. Step 6: Final answer
    x = 62,208.77

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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.