Home / 86,724.95-119,700.43-56,457.56

Finding the Fourth Proportional to 86,724.95, 119,700.43 and 56,457.56

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Solution

The fourth proportional to 86,724.95, 119,700.43 and 56,457.56 is: 77,924.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,724.95 : 119,700.43 = 56,457.56 : x
  2. Step 2: Convert to fraction form
    86,724.95/119,700.43 = 56,457.56/x
  3. Step 3: Cross multiply
    86,724.95x = 119,700.43 × 56,457.56
  4. Step 4: Simplify right side
    86,724.95x = 6,757,994,011.12
  5. Step 5: Solve for x
    x = 6,757,994,011.12/86,724.95
  6. Step 6: Final answer
    x = 77,924.45

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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.