Home / 81,038.28-121,553.02-24,878.40

Finding the Fourth Proportional to 81,038.28, 121,553.02 and 24,878.40

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Solution

The fourth proportional to 81,038.28, 121,553.02 and 24,878.40 is: 37,316.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,038.28 : 121,553.02 = 24,878.40 : x
  2. Step 2: Convert to fraction form
    81,038.28/121,553.02 = 24,878.40/x
  3. Step 3: Cross multiply
    81,038.28x = 121,553.02 × 24,878.40
  4. Step 4: Simplify right side
    81,038.28x = 3,024,044,228.04
  5. Step 5: Solve for x
    x = 3,024,044,228.04/81,038.28
  6. Step 6: Final answer
    x = 37,316.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.