Home / 99,011.61-136,643.25-56,569.23

Finding the Fourth Proportional to 99,011.61, 136,643.25 and 56,569.23

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Solution

The fourth proportional to 99,011.61, 136,643.25 and 56,569.23 is: 78,069.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,011.61 : 136,643.25 = 56,569.23 : x
  2. Step 2: Convert to fraction form
    99,011.61/136,643.25 = 56,569.23/x
  3. Step 3: Cross multiply
    99,011.61x = 136,643.25 × 56,569.23
  4. Step 4: Simplify right side
    99,011.61x = 7,729,803,437.20
  5. Step 5: Solve for x
    x = 7,729,803,437.20/99,011.61
  6. Step 6: Final answer
    x = 78,069.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.