Home / 90,109.66-124,324.02-62,885.02

Finding the Fourth Proportional to 90,109.66, 124,324.02 and 62,885.02

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Solution

The fourth proportional to 90,109.66, 124,324.02 and 62,885.02 is: 86,762.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,109.66 : 124,324.02 = 62,885.02 : x
  2. Step 2: Convert to fraction form
    90,109.66/124,324.02 = 62,885.02/x
  3. Step 3: Cross multiply
    90,109.66x = 124,324.02 × 62,885.02
  4. Step 4: Simplify right side
    90,109.66x = 7,818,118,484.18
  5. Step 5: Solve for x
    x = 7,818,118,484.18/90,109.66
  6. Step 6: Final answer
    x = 86,762.27

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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.