Home / 70,711.17-106,066.47-28,590.74

Finding the Fourth Proportional to 70,711.17, 106,066.47 and 28,590.74

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Solution

The fourth proportional to 70,711.17, 106,066.47 and 28,590.74 is: 42,885.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,711.17 : 106,066.47 = 28,590.74 : x
  2. Step 2: Convert to fraction form
    70,711.17/106,066.47 = 28,590.74/x
  3. Step 3: Cross multiply
    70,711.17x = 106,066.47 × 28,590.74
  4. Step 4: Simplify right side
    70,711.17x = 3,032,518,866.49
  5. Step 5: Solve for x
    x = 3,032,518,866.49/70,711.17
  6. Step 6: Final answer
    x = 42,885.99

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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.