Home / 81,276.48-112,167.45-45,478.02

Finding the Fourth Proportional to 81,276.48, 112,167.45 and 45,478.02

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Solution

The fourth proportional to 81,276.48, 112,167.45 and 45,478.02 is: 62,762.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,276.48 : 112,167.45 = 45,478.02 : x
  2. Step 2: Convert to fraction form
    81,276.48/112,167.45 = 45,478.02/x
  3. Step 3: Cross multiply
    81,276.48x = 112,167.45 × 45,478.02
  4. Step 4: Simplify right side
    81,276.48x = 5,101,153,955.08
  5. Step 5: Solve for x
    x = 5,101,153,955.08/81,276.48
  6. Step 6: Final answer
    x = 62,762.98

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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.