Home / 76,673.02-105,813.75-42,681.10

Finding the Fourth Proportional to 76,673.02, 105,813.75 and 42,681.10

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Solution

The fourth proportional to 76,673.02, 105,813.75 and 42,681.10 is: 58,902.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,673.02 : 105,813.75 = 42,681.10 : x
  2. Step 2: Convert to fraction form
    76,673.02/105,813.75 = 42,681.10/x
  3. Step 3: Cross multiply
    76,673.02x = 105,813.75 × 42,681.10
  4. Step 4: Simplify right side
    76,673.02x = 4,516,247,245.13
  5. Step 5: Solve for x
    x = 4,516,247,245.13/76,673.02
  6. Step 6: Final answer
    x = 58,902.69

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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.