Home / 65,554.13-90,807.30-64,225.53

Finding the Fourth Proportional to 65,554.13, 90,807.30 and 64,225.53

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Solution

The fourth proportional to 65,554.13, 90,807.30 and 64,225.53 is: 88,966.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,554.13 : 90,807.30 = 64,225.53 : x
  2. Step 2: Convert to fraction form
    65,554.13/90,807.30 = 64,225.53/x
  3. Step 3: Cross multiply
    65,554.13x = 90,807.30 × 64,225.53
  4. Step 4: Simplify right side
    65,554.13x = 5,832,146,970.37
  5. Step 5: Solve for x
    x = 5,832,146,970.37/65,554.13
  6. Step 6: Final answer
    x = 88,966.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.