Home / 78,706.02-108,614.40-42,896.07

Finding the Fourth Proportional to 78,706.02, 108,614.40 and 42,896.07

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Solution

The fourth proportional to 78,706.02, 108,614.40 and 42,896.07 is: 59,196.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,706.02 : 108,614.40 = 42,896.07 : x
  2. Step 2: Convert to fraction form
    78,706.02/108,614.40 = 42,896.07/x
  3. Step 3: Cross multiply
    78,706.02x = 108,614.40 × 42,896.07
  4. Step 4: Simplify right side
    78,706.02x = 4,659,130,905.41
  5. Step 5: Solve for x
    x = 4,659,130,905.41/78,706.02
  6. Step 6: Final answer
    x = 59,196.63

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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.