Home / 56,341.90-77,668.95-42,889.74

Finding the Fourth Proportional to 56,341.90, 77,668.95 and 42,889.74

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Solution

The fourth proportional to 56,341.90, 77,668.95 and 42,889.74 is: 59,124.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,341.90 : 77,668.95 = 42,889.74 : x
  2. Step 2: Convert to fraction form
    56,341.90/77,668.95 = 42,889.74/x
  3. Step 3: Cross multiply
    56,341.90x = 77,668.95 × 42,889.74
  4. Step 4: Simplify right side
    56,341.90x = 3,331,201,071.57
  5. Step 5: Solve for x
    x = 3,331,201,071.57/56,341.90
  6. Step 6: Final answer
    x = 59,124.76

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1.5x scale

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.