Home / 77,581.84-107,075.12-45,754.24

Finding the Fourth Proportional to 77,581.84, 107,075.12 and 45,754.24

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Solution

The fourth proportional to 77,581.84, 107,075.12 and 45,754.24 is: 63,148.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,581.84 : 107,075.12 = 45,754.24 : x
  2. Step 2: Convert to fraction form
    77,581.84/107,075.12 = 45,754.24/x
  3. Step 3: Cross multiply
    77,581.84x = 107,075.12 × 45,754.24
  4. Step 4: Simplify right side
    77,581.84x = 4,899,140,738.51
  5. Step 5: Solve for x
    x = 4,899,140,738.51/77,581.84
  6. Step 6: Final answer
    x = 63,148.03

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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.