Home / 85,646.18-118,192.02-47,918

Finding the Fourth Proportional to 85,646.18, 118,192.02 and 47,918

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Solution

The fourth proportional to 85,646.18, 118,192.02 and 47,918 is: 66,127.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,646.18 : 118,192.02 = 47,918 : x
  2. Step 2: Convert to fraction form
    85,646.18/118,192.02 = 47,918/x
  3. Step 3: Cross multiply
    85,646.18x = 118,192.02 × 47,918
  4. Step 4: Simplify right side
    85,646.18x = 5,663,525,214.36
  5. Step 5: Solve for x
    x = 5,663,525,214.36/85,646.18
  6. Step 6: Final answer
    x = 66,127.00

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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.