Home / 78,679.02-108,591.12-46,411.68

Finding the Fourth Proportional to 78,679.02, 108,591.12 and 46,411.68

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Solution

The fourth proportional to 78,679.02, 108,591.12 and 46,411.68 is: 64,056.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,679.02 : 108,591.12 = 46,411.68 : x
  2. Step 2: Convert to fraction form
    78,679.02/108,591.12 = 46,411.68/x
  3. Step 3: Cross multiply
    78,679.02x = 108,591.12 × 46,411.68
  4. Step 4: Simplify right side
    78,679.02x = 5,039,896,312.28
  5. Step 5: Solve for x
    x = 5,039,896,312.28/78,679.02
  6. Step 6: Final answer
    x = 64,056.42

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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.