Home / 56,038.70-77,332.35-30,545.30

Finding the Fourth Proportional to 56,038.70, 77,332.35 and 30,545.30

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Solution

The fourth proportional to 56,038.70, 77,332.35 and 30,545.30 is: 42,151.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,038.70 : 77,332.35 = 30,545.30 : x
  2. Step 2: Convert to fraction form
    56,038.70/77,332.35 = 30,545.30/x
  3. Step 3: Cross multiply
    56,038.70x = 77,332.35 × 30,545.30
  4. Step 4: Simplify right side
    56,038.70x = 2,362,139,830.46
  5. Step 5: Solve for x
    x = 2,362,139,830.46/56,038.70
  6. Step 6: Final answer
    x = 42,151.94

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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.