Home / 76,482.19-105,515.94-56,386.84

Finding the Fourth Proportional to 76,482.19, 105,515.94 and 56,386.84

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Solution

The fourth proportional to 76,482.19, 105,515.94 and 56,386.84 is: 77,792.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,482.19 : 105,515.94 = 56,386.84 : x
  2. Step 2: Convert to fraction form
    76,482.19/105,515.94 = 56,386.84/x
  3. Step 3: Cross multiply
    76,482.19x = 105,515.94 × 56,386.84
  4. Step 4: Simplify right side
    76,482.19x = 5,949,710,426.23
  5. Step 5: Solve for x
    x = 5,949,710,426.23/76,482.19
  6. Step 6: Final answer
    x = 77,792.10

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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.