Home / 90,050.04-135,070.17-45,675.64

Finding the Fourth Proportional to 90,050.04, 135,070.17 and 45,675.64

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Solution

The fourth proportional to 90,050.04, 135,070.17 and 45,675.64 is: 68,510.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,050.04 : 135,070.17 = 45,675.64 : x
  2. Step 2: Convert to fraction form
    90,050.04/135,070.17 = 45,675.64/x
  3. Step 3: Cross multiply
    90,050.04x = 135,070.17 × 45,675.64
  4. Step 4: Simplify right side
    90,050.04x = 6,169,416,459.66
  5. Step 5: Solve for x
    x = 6,169,416,459.66/90,050.04
  6. Step 6: Final answer
    x = 68,510.98

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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.