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Finding the Fourth Proportional to 60,303.69, 90,307.91 and 42,490.58

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Solution

The fourth proportional to 60,303.69, 90,307.91 and 42,490.58 is: 63,631.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,303.69 : 90,307.91 = 42,490.58 : x
  2. Step 2: Convert to fraction form
    60,303.69/90,307.91 = 42,490.58/x
  3. Step 3: Cross multiply
    60,303.69x = 90,307.91 × 42,490.58
  4. Step 4: Simplify right side
    60,303.69x = 3,837,235,129.17
  5. Step 5: Solve for x
    x = 3,837,235,129.17/60,303.69
  6. Step 6: Final answer
    x = 63,631.85

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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.