Home / 47,130.60-70,705.74-42,425.30

Finding the Fourth Proportional to 47,130.60, 70,705.74 and 42,425.30

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Solution

The fourth proportional to 47,130.60, 70,705.74 and 42,425.30 is: 63,646.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,130.60 : 70,705.74 = 42,425.30 : x
  2. Step 2: Convert to fraction form
    47,130.60/70,705.74 = 42,425.30/x
  3. Step 3: Cross multiply
    47,130.60x = 70,705.74 × 42,425.30
  4. Step 4: Simplify right side
    47,130.60x = 2,999,712,231.22
  5. Step 5: Solve for x
    x = 2,999,712,231.22/47,130.60
  6. Step 6: Final answer
    x = 63,646.81

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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.