Home / 85,642.02-128,459.93-22,461.62

Finding the Fourth Proportional to 85,642.02, 128,459.93 and 22,461.62

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Solution

The fourth proportional to 85,642.02, 128,459.93 and 22,461.62 is: 33,691.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,642.02 : 128,459.93 = 22,461.62 : x
  2. Step 2: Convert to fraction form
    85,642.02/128,459.93 = 22,461.62/x
  3. Step 3: Cross multiply
    85,642.02x = 128,459.93 × 22,461.62
  4. Step 4: Simplify right side
    85,642.02x = 2,885,417,378.28
  5. Step 5: Solve for x
    x = 2,885,417,378.28/85,642.02
  6. Step 6: Final answer
    x = 33,691.61

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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.