Home / 105,575.02-145,693.71-57,828.46

Finding the Fourth Proportional to 105,575.02, 145,693.71 and 57,828.46

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Solution

The fourth proportional to 105,575.02, 145,693.71 and 57,828.46 is: 79,803.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,575.02 : 145,693.71 = 57,828.46 : x
  2. Step 2: Convert to fraction form
    105,575.02/145,693.71 = 57,828.46/x
  3. Step 3: Cross multiply
    105,575.02x = 145,693.71 × 57,828.46
  4. Step 4: Simplify right side
    105,575.02x = 8,425,242,880.99
  5. Step 5: Solve for x
    x = 8,425,242,880.99/105,575.02
  6. Step 6: Final answer
    x = 79,803.37

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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.