Home / 105,565.92-145,681.02-57,822.30

Finding the Fourth Proportional to 105,565.92, 145,681.02 and 57,822.30

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Solution

The fourth proportional to 105,565.92, 145,681.02 and 57,822.30 is: 79,794.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,565.92 : 145,681.02 = 57,822.30 : x
  2. Step 2: Convert to fraction form
    105,565.92/145,681.02 = 57,822.30/x
  3. Step 3: Cross multiply
    105,565.92x = 145,681.02 × 57,822.30
  4. Step 4: Simplify right side
    105,565.92x = 8,423,611,642.75
  5. Step 5: Solve for x
    x = 8,423,611,642.75/105,565.92
  6. Step 6: Final answer
    x = 79,794.80

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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.