Home / 105,573.63-145,691.65-57,828.70

Finding the Fourth Proportional to 105,573.63, 145,691.65 and 57,828.70

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Solution

The fourth proportional to 105,573.63, 145,691.65 and 57,828.70 is: 79,803.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,573.63 : 145,691.65 = 57,828.70 : x
  2. Step 2: Convert to fraction form
    105,573.63/145,691.65 = 57,828.70/x
  3. Step 3: Cross multiply
    105,573.63x = 145,691.65 × 57,828.70
  4. Step 4: Simplify right side
    105,573.63x = 8,425,158,720.36
  5. Step 5: Solve for x
    x = 8,425,158,720.36/105,573.63
  6. Step 6: Final answer
    x = 79,803.63

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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.