Home / 105,274.76-145,273-57,528.48

Finding the Fourth Proportional to 105,274.76, 145,273 and 57,528.48

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Solution

The fourth proportional to 105,274.76, 145,273 and 57,528.48 is: 79,385.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,274.76 : 145,273 = 57,528.48 : x
  2. Step 2: Convert to fraction form
    105,274.76/145,273 = 57,528.48/x
  3. Step 3: Cross multiply
    105,274.76x = 145,273 × 57,528.48
  4. Step 4: Simplify right side
    105,274.76x = 8,357,334,875.04
  5. Step 5: Solve for x
    x = 8,357,334,875.04/105,274.76
  6. Step 6: Final answer
    x = 79,385.93

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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.