Home / 56,688.23-78,337.65-42,516.47

Finding the Fourth Proportional to 56,688.23, 78,337.65 and 42,516.47

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Solution

The fourth proportional to 56,688.23, 78,337.65 and 42,516.47 is: 58,753.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,688.23 : 78,337.65 = 42,516.47 : x
  2. Step 2: Convert to fraction form
    56,688.23/78,337.65 = 42,516.47/x
  3. Step 3: Cross multiply
    56,688.23x = 78,337.65 × 42,516.47
  4. Step 4: Simplify right side
    56,688.23x = 3,330,639,741.82
  5. Step 5: Solve for x
    x = 3,330,639,741.82/56,688.23
  6. Step 6: Final answer
    x = 58,753.64

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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.