Home / 40,807.40-61,211.10-28,365.80

Finding the Fourth Proportional to 40,807.40, 61,211.10 and 28,365.80

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Solution

The fourth proportional to 40,807.40, 61,211.10 and 28,365.80 is: 42,548.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,807.40 : 61,211.10 = 28,365.80 : x
  2. Step 2: Convert to fraction form
    40,807.40/61,211.10 = 28,365.80/x
  3. Step 3: Cross multiply
    40,807.40x = 61,211.10 × 28,365.80
  4. Step 4: Simplify right side
    40,807.40x = 1,736,301,820.38
  5. Step 5: Solve for x
    x = 1,736,301,820.38/40,807.40
  6. Step 6: Final answer
    x = 42,548.70

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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.